solve for x.

-12 + x = 48

x = 48 + 12

x = 60

x - 25 = 5

x = 5 + 25

x = 30

4x = -24

x = -24 / 4

x = -6

-6x = -78

x = -78 / -6

x = 13

x/8 = -8

x = -8 * 8

x = -64