Respuesta :

Subtract 0.12 from both sides.
Then you get 0.20 - 0.12 on the right side of your equation, which equals 0.08.

C. r = -0.08

Hope I Helped!!!

TSO
Depends on your question...

If your question is r + 0.12 = 0.20 then do this:

Subtract 0.12 from both sides

r = 0.08

The answer is B.


If your question is r - 0.12 = 0.20 then do this:

Add 0.12 on both sides

r = 0.32

The answer is A

So it depends on your question :P