101.6=3.2(7.5r+7)

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Solution for 101.6=3.2(7.5r+7) equation: 



101.6=3.2(7.5r+7)

We move all terms to the left:

101.6-(3.2(7.5r+7))=0



We calculate terms in parentheses: -(3.2(7.5r+7)), so:

3.2(7.5r+7)

We multiply parentheses

22.4r+22.4

Back to the equation:

-(22.4r+22.4)



We get rid of parentheses

-22.4r-22.4+101.6=0

We add all the numbers together, and all the variables

-22.4r+79.2=0

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

-22.4r=-79.2

r=-79.2/-22.4

r=3+6/11.2

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