Solving for a Variable

Multi-Step Equations

Example 4

Solve -5x - 7 = 108

Step 1. Add 7 to both sides of the equation to isolate the variable.

Solve_ex4_1

Step 2. Divide both sides of the resulting equation by -5 and simplify.

Solve_ex4_2

Step 3. Check the solution.

Solve_ex4_3