MathSolverAI

Math tool

Solve a linear equation — and check every move.

Solve supported linear equations in x for free, see the rule behind each step, and verify the answer by substitution.

A linear equation has the variable only to the first power. Keep the equation balanced by applying the same reversible operation to both sides, isolate x, then substitute the result into the original equation.

Reviewed 2026-09-12 · MathSolverAI 0.4.0

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Try a supported equation

Expanded linear and quadratic equations in x run in this browser without an account.

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Worked example

2x + 3 = 11

  1. Subtract 3 from both sides: 2x = 8.
  2. Divide both sides by the nonzero coefficient 2: x = 4.
  3. Check the original equation: 2(4) + 3 = 11.

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