The equation −3x−9=−21 is solved as follows. Supply the correct numbers to complete the solution.

Question

-3x - 9 = -21

-3x=__ add 9 to both sides.
x=__ divide both sides by -3

Answer 1

-3x + 9 = -21 + 9
-3x = -12

Dividing both sides by -3:
x = 4

Answer 2

The equation 10x+13=−12 is solved as follows. Supply the correct numbers to complete the solution.(1 point)
10x+13=−12
10x=
Subtract 13 from both sides.
x=
Divide both sides by 10.

Answer 3

1. -12 and 4
2. -25 and -2.5
3. 2
4. -5 and -3
5. -0.36 and -1.5

:3 have a good night sleep

Answer 4

thank you @redclover13