Question

1. x/4 + 11 = -25

2. x/4 - 5 = 13

3. x/4 = 13

Answer 1

How about if I do one, you try the others, and come back if you get stuck?

x/4 - 5 = 13
add 5 to both sides
x/4 = 18
multiply both sides by 4
x = 72