-r+9=-11-6r

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Solution for -r+9=-11-6r equation: 



-r+9=-11-6r

We move all terms to the left:

-r+9-(-11-6r)=0

We add all the numbers together, and all the variables

-r-(-6r-11)+9=0

We add all the numbers together, and all the variables

-1r-(-6r-11)+9=0

We get rid of parentheses

-1r+6r+11+9=0

We add all the numbers together, and all the variables

5r+20=0

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

5r=-20

r=-20/5

r=-4

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