Type a problem and the solver shows the answer and every step. 2x + 3 = 11 gives x = 4 (subtract 3, divide by 2). x² − 5x + 6 = 0 gives x = 2 or x = 3. 135/180 simplifies to 3/4, and 15% of 200 is 30.
It handles equations, quadratics, two-equation systems, expressions, percents, fractions and factoring. For word problems, calculus or anything else it tells you so and links to the right tool, rather than guessing.
Equations, quadratics, two-equation systems, expressions, percents, fractions and factoring. Answers update as you type.
Linear equation
x = 11
Three problems that come up constantly, solved the way the tool does it.
Find x.
x = 11. Check: 3(11 − 2) = 27 and 2(11) + 5 = 27, so both sides match.
Find x and y.
x = 6, y = 4. Check: 6 + 4 = 10 and 6 − 4 = 2.
Write the fraction in lowest terms.
135/180 = 3/4 (0.75). 3 and 4 share no factor, so it cannot reduce further.
For more methods, browse the step-by-step how-to-solve guides, including linear equations, the quadratic formula and systems of equations.
Send the whole question to the MathAI GPT math solver and get a step-by-step explanation. On your phone, use MathAI GPT - Math Solver for iPhone or MathAI GPT for Android.
Read the problem and decide what is being asked, choose the method (isolate the variable for an equation, use the quadratic formula for ax² + bx + c = 0, divide by the greatest common factor to simplify a fraction), do one operation per line, then check the answer by putting it back into the original problem.
Linear equations (2x + 3 = 11), quadratic equations (x² − 5x + 6 = 0), two linear equations in x and y, expressions to evaluate or expand, “15% of 200” and “20 is what percent of 80”, simplifying fractions like 135/180, factoring a quadratic, and prime factorization. Calculus, matrices, statistics and word problems are routed to the matching calculator or the AI solver.
Do the same operation to both sides until x is alone. For 3(x − 2) = 2x + 5: expand to 3x − 6 = 2x + 5, subtract 2x from both sides to get x − 6 = 5, then add 6 to get x = 11. Check: 3(11 − 2) = 27 and 2(11) + 5 = 27.
Move everything to one side so it reads ax² + bx + c = 0, then use x = (−b ± √(b² − 4ac)) ÷ 2a. For x² − 5x + 6 = 0, a = 1, b = −5, c = 6, so the discriminant is 25 − 24 = 1 and x = (5 ± 1) ÷ 2, giving x = 3 or x = 2. A negative discriminant means no real solutions.
Every number is held as an exact fraction, so 0.1x + 0.2 = 0.5 gives exactly x = 3 and not 2.9999999. Each solution ends with a check that substitutes the answer back into the problem. For a graded assignment, still follow your teacher’s required method and show your own working.
The page tells you instead of guessing. Longer word problems and topics such as derivatives, integrals, limits, matrices and probability link to the dedicated calculator, or to the MathAI GPT solver, which can take the whole question typed or as a photo and explain each step.