-2r+9=r-6

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Solution for -2r+9=r-6 equation: 



-2r+9=r-6

We move all terms to the left:

-2r+9-(r-6)=0

We get rid of parentheses

-2r-r+6+9=0

We add all the numbers together, and all the variables

-3r+15=0

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

-3r=-15

r=-15/-3

r=+5

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