2r-12=22

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Solution for 2r-12=22 equation: 



2r-12=22

We move all terms to the left:

2r-12-(22)=0

We add all the numbers together, and all the variables

2r-34=0

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

2r=34

r=34/2

r=17

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