-7r+13=-7-5r

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Solution for -7r+13=-7-5r equation: 



-7r+13=-7-5r

We move all terms to the left:

-7r+13-(-7-5r)=0

We add all the numbers together, and all the variables

-7r-(-5r-7)+13=0

We get rid of parentheses

-7r+5r+7+13=0

We add all the numbers together, and all the variables

-2r+20=0

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

-2r=-20

r=-20/-2

r=+10

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