12r-15=3(3r-16)

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Solution for 12r-15=3(3r-16) equation: 



12r-15=3(3r-16)

We move all terms to the left:

12r-15-(3(3r-16))=0



We calculate terms in parentheses: -(3(3r-16)), so:

3(3r-16)

We multiply parentheses

9r-48

Back to the equation:

-(9r-48)



We get rid of parentheses

12r-9r+48-15=0

We add all the numbers together, and all the variables

3r+33=0

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

3r=-33

r=-33/3

r=-11

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