50=8(7+7r)+3(3r-3)

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Solution for 50=8(7+7r)+3(3r-3) equation: 



50=8(7+7r)+3(3r-3)

We move all terms to the left:

50-(8(7+7r)+3(3r-3))=0

We add all the numbers together, and all the variables

-(8(7r+7)+3(3r-3))+50=0



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

8(7r+7)+3(3r-3)

We multiply parentheses

56r+9r+56-9

We add all the numbers together, and all the variables

65r+47

Back to the equation:

-(65r+47)



We get rid of parentheses

-65r-47+50=0

We add all the numbers together, and all the variables

-65r+3=0

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

-65r=-3

r=-3/-65

r=3/65

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