Question

How do I do this?

-2(6-r)=4

Answer 1

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

Answer 2

Answer:r=8

Explanation: