-125=5(-7r+3)

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Solution for -125=5(-7r+3) equation: 



-125=5(-7r+3)

We move all terms to the left:

-125-(5(-7r+3))=0



We calculate terms in parentheses: -(5(-7r+3)), so:

5(-7r+3)

We multiply parentheses

-35r+15

Back to the equation:

-(-35r+15)



We get rid of parentheses

35r-15-125=0

We add all the numbers together, and all the variables

35r-140=0

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

35r=140

r=140/35

r=4

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