-100=-6(-2r+4)-4

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Solution for -100=-6(-2r+4)-4 equation: 



-100=-6(-2r+4)-4

We move all terms to the left:

-100-(-6(-2r+4)-4)=0



We calculate terms in parentheses: -(-6(-2r+4)-4), so:

-6(-2r+4)-4

We multiply parentheses

12r-24-4

We add all the numbers together, and all the variables

12r-28

Back to the equation:

-(12r-28)



We get rid of parentheses

-12r+28-100=0

We add all the numbers together, and all the variables

-12r-72=0

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

-12r=72

r=72/-12

r=-6

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