-9-r=7+3r-6r

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Solution for -9-r=7+3r-6r equation: 



-9-r=7+3r-6r

We move all terms to the left:

-9-r-(7+3r-6r)=0

We add all the numbers together, and all the variables

-r-(-3r+7)-9=0

We add all the numbers together, and all the variables

-1r-(-3r+7)-9=0

We get rid of parentheses

-1r+3r-7-9=0

We add all the numbers together, and all the variables

2r-16=0

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

2r=16

r=16/2

r=8

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