-87=-(3r+8)

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Solution for -87=-(3r+8) equation: 



-87=-(3r+8)

We move all terms to the left:

-87-(-(3r+8))=0



We calculate terms in parentheses: -(-(3r+8)), so:

-(3r+8)

We get rid of parentheses

-3r-8

Back to the equation:

-(-3r-8)



We get rid of parentheses

3r+8-87=0

We add all the numbers together, and all the variables

3r-79=0

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

3r=79

r=79/3

r=26+1/3

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