12+2r=22

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Solution for 12+2r=22 equation:



12+2r=22
We move all terms to the left:
12+2r-(22)=0
We add all the numbers together, and all the variables
2r-10=0
We move all terms containing r to the left, all other terms to the right
2r=10
r=10/2
r=5

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