90=2(r+14)

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Solution for 90=2(r+14) equation: 



90=2(r+14)

We move all terms to the left:

90-(2(r+14))=0



We calculate terms in parentheses: -(2(r+14)), so:

2(r+14)

We multiply parentheses

2r+28

Back to the equation:

-(2r+28)



We get rid of parentheses

-2r-28+90=0

We add all the numbers together, and all the variables

-2r+62=0

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

-2r=-62

r=-62/-2

r=+31

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