45=-(7r+1)+4(-8r-8)

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Solution for 45=-(7r+1)+4(-8r-8) equation: 



45=-(7r+1)+4(-8r-8)

We move all terms to the left:

45-(-(7r+1)+4(-8r-8))=0



We calculate terms in parentheses: -(-(7r+1)+4(-8r-8)), so:

-(7r+1)+4(-8r-8)

We multiply parentheses

-(7r+1)-32r-32

We get rid of parentheses

-7r-32r-1-32

We add all the numbers together, and all the variables

-39r-33

Back to the equation:

-(-39r-33)



We get rid of parentheses

39r+33+45=0

We add all the numbers together, and all the variables

39r+78=0

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

39r=-78

r=-78/39

r=-2

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