4(2r+8)=128

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Solution for 4(2r+8)=128 equation: 



4(2r+8)=128

We move all terms to the left:

4(2r+8)-(128)=0

We multiply parentheses

8r+32-128=0

We add all the numbers together, and all the variables

8r-96=0

We move all terms containing r to the left, all other terms to the right

8r=96

r=96/8

r=12

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