Answer:

5x-6

Step-by-step explanation:

12x+28 I think

4•3x+7

12x+(4•7)

12x+28

X + y = -15. Subtract x from both sides.

y = -x - 15. This is as far as we can go with the provided information.

13152 divided by 8 equals 1644

1644 times 8 and then you would get your answer which is 13152