-12-9r=-18-9r+6

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Solution for -12-9r=-18-9r+6 equation: 



-12-9r=-18-9r+6

We move all terms to the left:

-12-9r-(-18-9r+6)=0

We add all the numbers together, and all the variables

-9r-(-9r-12)-12=0

We get rid of parentheses

-9r+9r+12-12=0

We add all the numbers together, and all the variables

=0

r=0/1

r=0

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