25=r+12;r=

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Solution for 25=r+12;r= equation: 



25=r+12r=

We move all terms to the left:

25-(r+12r)=0

We add all the numbers together, and all the variables

-(+13r)+25=0

We get rid of parentheses

-13r+25=0

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

-13r=-25

r=-25/-13

r=1+12/13

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