101=-5(10r+1)-12(-9r-4)

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Solution for 101=-5(10r+1)-12(-9r-4) equation: 



101=-5(10r+1)-12(-9r-4)

We move all terms to the left:

101-(-5(10r+1)-12(-9r-4))=0



We calculate terms in parentheses: -(-5(10r+1)-12(-9r-4)), so:

-5(10r+1)-12(-9r-4)

We multiply parentheses

-50r+108r-5+48

We add all the numbers together, and all the variables

58r+43

Back to the equation:

-(58r+43)



We get rid of parentheses

-58r-43+101=0

We add all the numbers together, and all the variables

-58r+58=0

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

-58r=-58

r=-58/-58

r=1

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