104=3r-4(-2r-4)

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Solution for 104=3r-4(-2r-4) equation: 



104=3r-4(-2r-4)

We move all terms to the left:

104-(3r-4(-2r-4))=0



We calculate terms in parentheses: -(3r-4(-2r-4)), so:

3r-4(-2r-4)

We multiply parentheses

3r+8r+16

We add all the numbers together, and all the variables

11r+16

Back to the equation:

-(11r+16)



We get rid of parentheses

-11r-16+104=0

We add all the numbers together, and all the variables

-11r+88=0

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

-11r=-88

r=-88/-11

r=+8

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