-5(3r+9)-6=-9(r-1)

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Solution for -5(3r+9)-6=-9(r-1) equation: 



-5(3r+9)-6=-9(r-1)

We move all terms to the left:

-5(3r+9)-6-(-9(r-1))=0

We multiply parentheses

-15r-(-9(r-1))-45-6=0



We calculate terms in parentheses: -(-9(r-1)), so:

-9(r-1)

We multiply parentheses

-9r+9

Back to the equation:

-(-9r+9)



We add all the numbers together, and all the variables

-15r-(-9r+9)-51=0

We get rid of parentheses

-15r+9r-9-51=0

We add all the numbers together, and all the variables

-6r-60=0

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

-6r=60

r=60/-6

r=-10

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