177=8(3r-5)+7r

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Solution for 177=8(3r-5)+7r equation: 



177=8(3r-5)+7r

We move all terms to the left:

177-(8(3r-5)+7r)=0



We calculate terms in parentheses: -(8(3r-5)+7r), so:

8(3r-5)+7r

We add all the numbers together, and all the variables

7r+8(3r-5)

We multiply parentheses

7r+24r-40

We add all the numbers together, and all the variables

31r-40

Back to the equation:

-(31r-40)



We get rid of parentheses

-31r+40+177=0

We add all the numbers together, and all the variables

-31r+217=0

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

-31r=-217

r=-217/-31

r=+7

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