8-3r+12=2r

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Solution for 8-3r+12=2r equation: 



8-3r+12=2r

We move all terms to the left:

8-3r+12-(2r)=0

We add all the numbers together, and all the variables

-5r+20=0

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

-5r=-20

r=-20/-5

r=+4

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