-7=2r+5-2

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



-7=2r+5-2

We move all terms to the left:

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

We add all the numbers together, and all the variables

-(2r+3)-7=0

We get rid of parentheses

-2r-3-7=0

We add all the numbers together, and all the variables

-2r-10=0

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

-2r=10

r=10/-2

r=-5

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