72=8(r+4)

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Solution for 72=8(r+4) equation: 



72=8(r+4)

We move all terms to the left:

72-(8(r+4))=0



We calculate terms in parentheses: -(8(r+4)), so:

8(r+4)

We multiply parentheses

8r+32

Back to the equation:

-(8r+32)



We get rid of parentheses

-8r-32+72=0

We add all the numbers together, and all the variables

-8r+40=0

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

-8r=-40

r=-40/-8

r=+5

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