147=-7(-5r-1)

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Solution for 147=-7(-5r-1) equation: 



147=-7(-5r-1)

We move all terms to the left:

147-(-7(-5r-1))=0



We calculate terms in parentheses: -(-7(-5r-1)), so:

-7(-5r-1)

We multiply parentheses

35r+7

Back to the equation:

-(35r+7)



We get rid of parentheses

-35r-7+147=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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