71=3(1+11r)-(-8+3r)

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Solution for 71=3(1+11r)-(-8+3r) equation: 



71=3(1+11r)-(-8+3r)

We move all terms to the left:

71-(3(1+11r)-(-8+3r))=0

We add all the numbers together, and all the variables

-(3(11r+1)-(3r-8))+71=0



We calculate terms in parentheses: -(3(11r+1)-(3r-8)), so:

3(11r+1)-(3r-8)

We multiply parentheses

33r-(3r-8)+3

We get rid of parentheses

33r-3r+8+3

We add all the numbers together, and all the variables

30r+11

Back to the equation:

-(30r+11)



We get rid of parentheses

-30r-11+71=0

We add all the numbers together, and all the variables

-30r+60=0

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

-30r=-60

r=-60/-30

r=+2

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