-54=9(r-5)

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Solution for -54=9(r-5) equation: 



-54=9(r-5)

We move all terms to the left:

-54-(9(r-5))=0



We calculate terms in parentheses: -(9(r-5)), so:

9(r-5)

We multiply parentheses

9r-45

Back to the equation:

-(9r-45)



We get rid of parentheses

-9r+45-54=0

We add all the numbers together, and all the variables

-9r-9=0

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

-9r=9

r=9/-9

r=-1

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