1. find the solution for 12 + x = 20 from the numbers 32, 10, and 8.

a. 32
b. 10
c. 8
d. -81

2. find the solution for 15/d = 5 from the numbers 3, 10, and 20.

a. 3
b. 10
c. 20
d. none are a solution

3. find the solution for -4n = -16 from the numbers -4, 4, and 12.

a. -4
b. 4
c. 12
d. none are a solution