-(2r+7)=3

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Solution for -(2r+7)=3 equation: 



-(2r+7)=3

We move all terms to the left:

-(2r+7)-(3)=0

We get rid of parentheses

-2r-7-3=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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