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zloy xaker [14]

3 years ago

15

Solve for r 108 = 9r

2 answers:

ioda3 years ago

6 0

Hey there!
Our goal here is to isolate r. In order to do that, we must do the opposite of the operation that is being done to r.
That operation just happens to be multiplication. Since 9 is being multiplied by 9, we divide both sides by r to solve for r.
We get:
r = 108/9
r = 12
Hope this helps!

Finger [1]3 years ago

3 0

9r=108

To solve for r, we must isolate it. To do this, divide both sides by 9.

r=108/9

Simplified, r=9

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