To solve one-step equations, perform the correct mathematical operation to get the variable by itself, and perform the same operation on the other side of the equation. Solve the equation when the variable is by itself.Continue Reading
For example, if the equation is x + 3 = 7, add -3 to x + 3 to cancel out the 3 on that side of the equation.
Add -3 to the other side of the equation so the equation reads as x = 7 - 3.
Simplify the equation to x = 4 to solve it.