-4(2-r)=12

Question

-8-4r=12
-8-4r=20
r=-5

Answer 1

- 4 ( 2 - r ) = 12

- 4 ∙ 2 - 4 ∙ ( - r ) = 12

- 8 + 4 r = 12

4 r = 12 + 8

4 r = 20

r = 20 / 4

r = 5