Equation Solver

Linear · Quadratic · Systems · Free

Equation Solver
with Step-by-Step
Solutions

Enter any equation — Math GPT identifies the type, shows each step, and explains why, not just what. From basic linear equations to systems and quadratics.

Switch to visual math keyboard
e.g. l, t, y
Quick examples
Identifying equation type…
Error:
Equation — Step-by-Step Solution
5 Types
Linear, quadratic, systems, cubic, literal — all covered
Annotated
Every step explains why the operation moves you toward the solution
Free · No Login
Full step-by-step output available without any account

Types of Equations

Every Equation Type. Fully Explained.

Math GPT identifies which type your equation is — and shows exactly how it’s solved, step by step.

Linear Equations

One variable, no exponents. Isolate the variable using inverse operations on both sides.

ax + b = c → x = (c − b) / a

Quadratic Equations

Variable squared. Math GPT picks the fastest method: factoring, square root, or the quadratic formula.

x = (−b ± √(b²−4ac)) / 2a

Systems of Equations

Two or more equations, two or more unknowns. Solved by substitution or elimination, shown in full.

x + y = 10, x − y = 2

Cubic Equations

Variable cubed. Solved via rational root testing, factoring, or numerical methods when needed.

ax³ + bx² + cx + d = 0

Literal Equations

Multiple variables — isolate one variable in terms of the others, like rearranging a formula.

A = lw → l = A / w

Rational & Absolute Value

Equations with fractions or absolute value bars — clear denominators or split into cases first.

|2x − 1| = 7

In Action

Equation Solver — Worked Examples

Three real problems showing exactly how Math GPT annotates each step.

Linear Basic — One Variable
Solve for x: 3x + 5 = 17
1
Isolate the term with x. Subtract 5 from both sides to undo the addition.3x + 5 − 5 = 17 − 5 → 3x = 12
2
Solve for x. Divide both sides by 3, the coefficient of x.x = 12 / 3
3
Check the answer. Substitute back: 3(4) + 5 = 17. ✓ Confirmed.
✓ x = 4
System Two Equations, Two Unknowns
Solve the system: x + y = 10, x − y = 2
1
Choose elimination. The y terms have opposite signs — add the equations directly to cancel y.(x + y) + (x − y) = 10 + 2 → 2x = 12
2
Solve for x.x = 6
3
Substitute back to find y. Using x + y = 10: 6 + y = 10.y = 4
✓ x = 6, y = 4
Quadratic Factoring Method
Solve for x: x² − 5x + 6 = 0
1
Identify the method. Look for two numbers that multiply to 6 and add to −5: −2 and −3.x² − 5x + 6 = (x − 2)(x − 3)
2
Apply the zero product property. If a product is zero, at least one factor must be zero.x − 2 = 0 or x − 3 = 0
3
Solve each factor.x = 2 or x = 3
✓ x = 2 or x = 3

Systems of Equations

Solving Systems: Substitution vs Elimination

When you have two or more equations sharing the same variables, you need a method that combines them into one solvable equation. Math GPT picks whichever method is fastest for your specific system.

  • Substitution — solve one equation for a variable, plug into the other
  • Elimination — add or subtract equations to cancel a variable
  • Works for 2×2 and 3×3 systems
Example: 2x − 3y = 6, 4x + y = 7
Step 1 — solve the simpler equation for y
y = 7 − 4x
Step 2 — substitute into the other equation
2x − 3(7 − 4x) = 6 → 14x = 27
Answer
x = 27/14, y = 7 − 4(27/14) = −5/7
Example: solve A = ½bh for h
Step 1 — isolate the term with h
2A = bh
Step 2 — divide both sides by b
h = 2A / b
Rearranged formula
h = 2A / b

Multiple Variables

Literal Equation Solver

A literal equation has more than one variable, like a geometry or physics formula. Solving it means isolating one variable in terms of the rest — the same balance-both-sides logic as a regular linear equation.

  • Rearrange geometry formulas (area, volume, perimeter)
  • Rearrange physics and finance formulas
  • Specify the target variable in the “Solve for” field above

Who Uses This Equation Solver

Middle & High School Students

Pre-algebra and Algebra I homework. Annotated steps teach the balance method instead of just handing over an answer.

College Students

College algebra and pre-calculus homework verification, including systems and quadratic word problems.

Parents Helping with Homework

Quickly verify a child’s algebra answer and follow the same steps to explain the method, not just the result.

Teachers & Tutors

Generate worked examples instantly and demonstrate multiple solving methods live in class.

What Is an Equation Solver — And Why the Steps Matter

An equation states that two expressions are equal, and solving it means finding the value (or values) of the unknown that make the statement true. Equations appear everywhere — from a basic algebra worksheet to engineering formulas and financial models.

The problem with most online equation solvers is that they return a final value without explaining how it was reached. Math GPT takes a different approach: every step carries a plain-language annotation so the method becomes as legible as the result.

How to Use This Equation Solver with Steps

Enter your equation in standard mathematical notation. Math GPT accepts linear equations, quadratics, systems of equations, and equations with multiple variables.

  • Select the equation type. Toggle between Linear, Quadratic, System, and Cubic using the buttons above the input, or just type — Math GPT detects the type automatically.
  • Review the annotated steps. Each step names the operation performed and explains why it moves you toward isolating the variable.
  • Use the worked examples. Click “Try in solver” on any example to load it into the calculator.
  • For systems, separate equations with a comma or write them on separate lines, like x+y=10, x-y=2.

For calculus-specific problems, try our derivative calculator.

Equation Solver vs Symbolab vs MathPapa

Symbolab and MathPapa are solid calculator tools, but full step explanations are frequently locked behind a paid subscription. Math GPT shows the reasoning at each step in plain English for free — transforming a calculator from an answer generator into an educational tool that outperforms general AI.

Equation Types Covered

Linear Equation Solver

A linear equation has one variable with no exponents, like 3x + 5 = 17. Math GPT isolates the variable using inverse operations — subtracting, adding, multiplying, or dividing both sides — and shows each operation as its own step.

Quadratic Equation Solver

A quadratic equation contains a squared variable, like ax² + bx + c = 0. Math GPT automatically selects the most efficient method: factoring when the equation factors cleanly, the square root method for equations missing a middle term, or the quadratic formula as a reliable fallback for any quadratic.

System of Equations Solver

A system has two or more equations sharing the same variables. Math GPT chooses substitution or elimination depending on which is faster for your specific system, and confirms the solution by substituting back into both original equations.

Cubic Equation Solver

A cubic equation contains a variable raised to the third power. Math GPT tests for rational roots first, factors where possible, and falls back to numerical approximation methods for equations without clean rational solutions.

Literal Equation Solver

A literal equation contains multiple variables — think of a geometry or physics formula like A = lw or F = ma. Solving it means rearranging to isolate one variable in terms of the others. Specify the target variable using the “Solve for” field above the input.

Equation Solver — FAQ

Yes. Math GPT shows every step of solving your equation in plain English, not just the final value of x. Each step names the operation performed and explains why it moves you closer to the solution.

Yes. Enter two or more equations separated by a comma or on separate lines, like x+y=10, x-y=2. Math GPT solves using substitution or elimination and shows the full method used.

Linear equations, quadratic equations, systems of two or more equations, cubic equations, and literal equations where you solve for a specific variable. Type your equation in standard notation and Math GPT identifies the type automatically.

Enter the equation in the form ax squared plus bx plus c equals 0, for example 2x^2 + 5x – 3 = 0. Math GPT chooses the most appropriate method — factoring, the quadratic formula, or completing the square — and shows each step.

A literal equation contains multiple variables, and solving it means isolating one variable in terms of the others — for example, solving the formula A = lw for l. Math GPT supports this; just specify which variable you want to solve for.

Yes. Math GPT’s equation solver is completely free with no sign up required. Enter any equation and get a step-by-step solution instantly.

Symbolab and Mathway often place detailed steps behind a paid subscription. Math GPT explains the reasoning behind each step in plain language for free, so you understand the method rather than just copying the final answer.

Ready to Solve Your Equation?

Enter any equation above — or return to Math GPT for the full AI math solver.