-8(-5r+7)=7(7r+1)

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Solution for -8(-5r+7)=7(7r+1) equation: 



-8(-5r+7)=7(7r+1)

We move all terms to the left:

-8(-5r+7)-(7(7r+1))=0

We multiply parentheses

40r-(7(7r+1))-56=0



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

7(7r+1)

We multiply parentheses

49r+7

Back to the equation:

-(49r+7)



We get rid of parentheses

40r-49r-7-56=0

We add all the numbers together, and all the variables

-9r-63=0

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

-9r=63

r=63/-9

r=-7

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