2r+22=40

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Solution for 2r+22=40 equation: 



2r+22=40

We move all terms to the left:

2r+22-(40)=0

We add all the numbers together, and all the variables

2r-18=0

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

2r=18

r=18/2

r=9

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