-2r-11+3r+11=21

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Solution for -2r-11+3r+11=21 equation: 



-2r-11+3r+11=21

We move all terms to the left:

-2r-11+3r+11-(21)=0

We add all the numbers together, and all the variables

r-21=0

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

r=21

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