-5=7r-2r

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Solution for -5=7r-2r equation: 



-5=7r-2r

We move all terms to the left:

-5-(7r-2r)=0

We add all the numbers together, and all the variables

-(+5r)-5=0

We get rid of parentheses

-5r-5=0

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

-5r=5

r=5/-5

r=-1

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