3r+2=12-2r

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



3r+2=12-2r

We move all terms to the left:

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

We add all the numbers together, and all the variables

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

We get rid of parentheses

3r+2r-12+2=0

We add all the numbers together, and all the variables

5r-10=0

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

5r=10

r=10/5

r=2

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