Equation Solver
Solve linear and quadratic equations with step-by-step working. Perfect for GCSE and A-level maths revision.
How to use
Linear equations
For ax + b = c: enter a, b and c. The solution shows each algebraic step — subtracting b from both sides, then dividing by a. Useful for GCSE tier 4-6 algebra.
Quadratic equations
For ax² + bx + c = 0: enter coefficients a, b and c. The quadratic formula is applied with the discriminant check. Shows both roots if they exist, or confirms no real solutions if the discriminant is negative.
Frequently asked questions
Is the Equation Solver free to use?
Yes, the Equation Solver is completely free. There is no sign-up, no account required, and no limit on how often you can use it.
Is the Equation Solver suitable for classroom use?
Yes, the Equation Solver is designed for both individual learners and classroom use. It works on any device with a modern browser — phones, tablets, Chromebooks, and computers.
What devices does the Equation Solver work on?
The Equation Solver works on any device with a modern web browser — desktop, laptop, tablet, or phone. It is mobile-friendly and works offline once the page has loaded.