Equation solver

Solve linear, quadratic, cubic, radical, exponential, and logarithmic equations step by step.

Equation

How to solve equations

An equation states two expressions are equal. To solve, isolate the variable using inverse operations. Different types need different strategies: factoring, quadratic formula, logarithms, or squaring both sides.

Popular equations
2x + 4 = 10 3x − 7 = 20 5x + 2 = 17 x/2 + 3 = 9 x² + 5x + 6 = 0 x² − 4 = 0 x² − 6x + 9 = 0 2x² − 3x − 2 = 0 4(x − 2) = 12 7x + 3 = 24 3x = 15 x − 9 = 0
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