-12(-9r+8)=-12(-10r+5)

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Solution for -12(-9r+8)=-12(-10r+5) equation: 



-12(-9r+8)=-12(-10r+5)

We move all terms to the left:

-12(-9r+8)-(-12(-10r+5))=0

We multiply parentheses

108r-(-12(-10r+5))-96=0



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

-12(-10r+5)

We multiply parentheses

120r-60

Back to the equation:

-(120r-60)



We get rid of parentheses

108r-120r+60-96=0

We add all the numbers together, and all the variables

-12r-36=0

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

-12r=36

r=36/-12

r=-3

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