3=r+2

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Solution for 3=r+2 equation: 



3=r+2

We move all terms to the left:

3-(r+2)=0

We get rid of parentheses

-r-2+3=0

We add all the numbers together, and all the variables

-1r+1=0

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

-r=-1

r=-1/-1

r=1

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