-107=5r+2(4r-8)

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Solution for -107=5r+2(4r-8) equation: 



-107=5r+2(4r-8)

We move all terms to the left:

-107-(5r+2(4r-8))=0



We calculate terms in parentheses: -(5r+2(4r-8)), so:

5r+2(4r-8)

We multiply parentheses

5r+8r-16

We add all the numbers together, and all the variables

13r-16

Back to the equation:

-(13r-16)



We get rid of parentheses

-13r+16-107=0

We add all the numbers together, and all the variables

-13r-91=0

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

-13r=91

r=91/-13

r=-7

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