Question

−2x − 13 = 8x + 7, which order of operations completely solves for x

Answer 1

Division, Addition, and Subtraction.
-2x - 13 = 8x + 7
We need to isolate the variable on one side. So I'm going to ADD 2x to both sides.
-2x + 2x - 13 = 8x + 7 + 2x
-13 = 10x + 7
SUBTRACT 7 from both sides.
-13 - 7 = 10x + 7 -7
-20 = 10x
DIVIDE 10 by both sides.
-20/10 = 10x/10
x = -2

Check your answer.
-2x - 13 = 8x + 7
-2(-2) - 13 = 8(-2) + 7
4 - 13 = -16 + 7
-9 = -9 Correct.

Answer 2

thank you