Respuesta :

Answer:

9

Step-by-step explanation:

- 7 (4 - r) = 35

First you need to do the parentheses

-7 times 4 is -28

-7 times -r is 7r

-28+7r=35

add 28 to both sides

7r=63

r=9

Answer:

r=9

Step-by-step explanation:

-28+7r=35, rearrange to put like terms together

7r=35+28, 7r=63, divide both sides by 7 to get r

r=63/7, r=9

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