Respuesta :

Answer:

r = -4

Step-by-step explanation:

-4r - 11 = 4r + 21

-8r - 11 = 21

-8r = 32

r = -4

Hopefully this helps!

Brainliest please?

-4r - 11 = 4r + 21
-4r - 4r = 21 + 11
- 8r = 32
r = 32/-8
r = 24


hope that helps :).
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