-104=2(8r+4)

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Solution for -104=2(8r+4) equation: 



-104=2(8r+4)

We move all terms to the left:

-104-(2(8r+4))=0



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

2(8r+4)

We multiply parentheses

16r+8

Back to the equation:

-(16r+8)



We get rid of parentheses

-16r-8-104=0

We add all the numbers together, and all the variables

-16r-112=0

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

-16r=112

r=112/-16

r=-7

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