Book 1 · Everyday Math

One-Step / Two-Step Equation Solver

Type the numbers into a·x + b = c. The solver undoes each move and shows the check.

Home › Calculators › Equation

Enter a, b, and c, then press Solve.
From the book — Chapter 5. Every equation is a scale. Whatever you do to one side, do to the other. First undo the addition or subtraction (move the constant across), then undo the multiplication or division (divide by the coefficient). Solving is really just those two moves, in that order.

Everything stays in your browser.