-40-r=5(-8+4r)

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Solution for -40-r=5(-8+4r) equation: 



-40-r=5(-8+4r)

We move all terms to the left:

-40-r-(5(-8+4r))=0

We add all the numbers together, and all the variables

-r-(5(4r-8))-40=0

We add all the numbers together, and all the variables

-1r-(5(4r-8))-40=0



We calculate terms in parentheses: -(5(4r-8)), so:

5(4r-8)

We multiply parentheses

20r-40

Back to the equation:

-(20r-40)



We get rid of parentheses

-1r-20r+40-40=0

We add all the numbers together, and all the variables

-21r=0

r=0/-21

r=0

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