Equation Solver
Solve linear and quadratic equations step by step — enter the numbers and see every move, from the discriminant to the final answer.
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Use nowHow the Equation Solver Works
Pick the equation type, then enter a, b and c. For a linear equation ax + b = c, the solver moves the constant to the other side and divides by the coefficient of x, showing each move. For a quadratic equation ax² + bx + c = 0, it first works out the discriminant b² - 4ac, which tells you whether there are two, one or no real solutions, then applies the quadratic formula and shows the substitution.
Every answer is checked by putting x back into the original equation — the left side must equal the right side. If a is 0 in a quadratic, the x² term disappears and the solver treats it as a linear equation instead. Try the examples: 2x + 5 = 17 gives x = 6, and x² - 5x + 6 = 0 gives x = 3 or x = 2.