Chapter 2 - Solving Equations - 2-2 Solving Two-Step Equations - Practice and Problem-Solving Exercises - Page 91: 16

x=72

We need to get the x alone, so we cancel out the subtraction by adding 8 on both sides. This leaves us with the equation $18=x/4$. In order to cancel out division, we use multiplication, so we multiply both sides by 4 to get that x=72. We plug 72 in for x and confirm that our answer is, indeed, correct.