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

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



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

We move all terms to the left:

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

We multiply parentheses

9r-(6(3r-9))+18=0



We calculate terms in parentheses: -(6(3r-9)), so:

6(3r-9)

We multiply parentheses

18r-54

Back to the equation:

-(18r-54)



We get rid of parentheses

9r-18r+54+18=0

We add all the numbers together, and all the variables

-9r+72=0

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

-9r=-72

r=-72/-9

r=+8

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