13-7r=-2(r-4)

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Solution for 13-7r=-2(r-4) equation: 



13-7r=-2(r-4)

We move all terms to the left:

13-7r-(-2(r-4))=0



We calculate terms in parentheses: -(-2(r-4)), so:

-2(r-4)

We multiply parentheses

-2r+8

Back to the equation:

-(-2r+8)



We get rid of parentheses

-7r+2r-8+13=0

We add all the numbers together, and all the variables

-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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