-6r-9=6r+15

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Solution for -6r-9=6r+15 equation: 



-6r-9=6r+15

We move all terms to the left:

-6r-9-(6r+15)=0

We get rid of parentheses

-6r-6r-15-9=0

We add all the numbers together, and all the variables

-12r-24=0

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

-12r=24

r=24/-12

r=-2

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