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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