Solve this equation: 2s + s + 12 = 132.
a. s = 40
b. s = 120
c. s = 9
d. s = –30

If you would like to solve the equation 2 * s + s + 12 = 132, you can do this using the following steps:

2 * s + s + 12 = 132
3 * s = 132 - 12
3 * s = 120      /3
s = 120/3
s = 40

The correct result would be A. s = 40.