9+3r+6;r=2

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Solution for 9+3r+6;r=2 equation: 



9+3r+6r=2

We move all terms to the left:

9+3r+6r-(2)=0

We add all the numbers together, and all the variables

9r+7=0

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

9r=-7

r=-7/9

r=-7/9

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