-9r+12r-(-19)=-17

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Solution for -9r+12r-(-19)=-17 equation: 



-9r+12r-(-19)=-17

We move all terms to the left:

-9r+12r-(-19)-(-17)=0

We add all the numbers together, and all the variables

3r+36=0

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

3r=-36

r=-36/3

r=-12

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