-18=6(2r-9)

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Solution for -18=6(2r-9) equation: 



-18=6(2r-9)

We move all terms to the left:

-18-(6(2r-9))=0



We calculate terms in parentheses: -(6(2r-9)), so:

6(2r-9)

We multiply parentheses

12r-54

Back to the equation:

-(12r-54)



We get rid of parentheses

-12r+54-18=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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