15 + 3w = 45 a. w=5 b. w=10 c. w=15 d. w=30 15= x/6 -1 a. x=96 b. x=90 c. x=84 d. x=80

problem one: w = 10    or    B

Problem two: x = 96    or     A

Step-by-step explanation:

Problem One

I take it these are two different questions.

15 + 3w = 45                  Subtract 15 from both sides

15 - 15 + 3w = 45 - 15     Combine like terms

3w = 30                          Divide by 3

3w/3 = 30/3                   Do the division

w = 10

Problem 2

Switch Sides

x/6 - 1 = 15                     Add 1 to both sides

x/6 - 1 + 1 = 15 + 1          Combine like terms

x/6 = 16                         Multiply  both sides by 6

x/6 * 6 = 16 * 6              Combine

x = 96