How do I do this? -2(6-r)=4

Question

asked Mar 2, 2021 126k views

2 Answers

KarthiS · Answer 1 · 2021-03-05T19:11:57+0000

To solve this, you need to isolate/get the variable "r" by itself in the equation:

-2(6 - r) = 4 Divide -2 on both sides

(-2(6-r))/(-2) =(4)/(-2)

6 - r = -2 Subtract 6 on both sides

6 - 6 - r = -2 - 6

-r = -8 Divide -1 on both sides to get "r" by itself

(-r)/(-1)=(-8)/(-1) (two negative signs cancel each other out and become positive)

r = 8

PROOF

-2(6 - r) = 4 Substitute/plug in 8 into "r"

-2(6 - 8) = 4

-2(-2) = 4

4 = 4