-40+7r=-5(8+5r)

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Solution for -40+7r=-5(8+5r) equation: 



-40+7r=-5(8+5r)

We move all terms to the left:

-40+7r-(-5(8+5r))=0

We add all the numbers together, and all the variables

7r-(-5(5r+8))-40=0



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

-5(5r+8)

We multiply parentheses

-25r-40

Back to the equation:

-(-25r-40)



We get rid of parentheses

7r+25r+40-40=0

We add all the numbers together, and all the variables

32r=0

r=0/32

r=0

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