-9=r-6-4r

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Solution for -9=r-6-4r equation: 



-9=r-6-4r

We move all terms to the left:

-9-(r-6-4r)=0

We add all the numbers together, and all the variables

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

We get rid of parentheses

3r+6-9=0

We add all the numbers together, and all the variables

3r-3=0

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

3r=3

r=3/3

r=1

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