Answer:
4) x = -11 5) x = 4 6) x = -5 7) x = -20
Step-by-step explanation:
4)
Subtract 7 from both sides.
x+7-7 = -4-7
x = -11
5)
Add 5 to each side.
x-5+5 = -1+5
x = 4
6)
Add 7 to each side.
-7 + 7+x = -12+7
x = -5
7)
Subtract 6 from each side.
6-6+x = -14-6
x = -20
