6+9r=312

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Solution for 6+9r=312 equation: 



6+9r=312

We move all terms to the left:

6+9r-(312)=0

We add all the numbers together, and all the variables

9r-306=0

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

9r=306

r=306/9

r=34

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