Free Calculator Tool

Equation Solver

Solve linear and quadratic equations with step-by-step solutions.

Want to solve ANY math problem? Just take a screenshot.

Math.Photos handles algebra, calculus, geometry, statistics, and more — all from a photo or your handwritten notes.

20 free solves · no credit card · no account needed to start

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Solve for x

How It Works

Linear Equations

Equations of the form ax + b = c. Isolate x by moving constants to one side and dividing by the coefficient. One solution.

Quadratic Equations

Equations of the form ax² + bx + c = 0. Solved using the quadratic formula. Can have 0, 1, or 2 real solutions depending on the discriminant.

Rearranging

The solver moves all terms to one side (left - right = 0) to put the equation in standard form, then applies the appropriate solving method.

Complex Roots

When the discriminant is negative, the equation has complex (imaginary) roots of the form a + bi, where i = √(-1).

Related Tools

Already did the work? Get it checked instead.

A calculator gives you an answer. It doesn't tell you which line of your working went wrong. Photograph your own steps — handwritten notebook, whiteboard, or a screenshot of an online assignment — and Math.Photos checks them line by line, then points at the exact step where the sign flipped.

Reads handwriting

Photo of your notebook, not a retyped expression.

Step-level verdict

"Line 3 dropped a negative", not just "wrong".

Teach Me mode

Questions that lead you to the fix, not the answer.

Pricing

Start free — 20 solves, no card. Upgrade only when you run out.

Lite

$1.99 /month

50 solves/month

Enough for a weekly problem set.

Most popular

Student

$4.99 /month

500 solves/month

Every assignment, all semester, plus Teach Me mode.

Pro

$9.99 /month

3,000 solves/month

Multi-device sync and LaTeX/PDF export.

Annual billing saves 37%. Cancel anytime — see full plan comparison.

Need more than an equation solver calculator?

Math.Photos solves any math problem from a screenshot — algebra, calculus, geometry, statistics, and more. With step-by-step explanations.

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20 free solves · no credit card