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3+r/22=-8
We move all terms to the left:
3+r/22-(-8)=0
We add all the numbers together, and all the variables
r/22+11=0
We multiply all the terms by the denominator
r+11*22=0
We add all the numbers together, and all the variables
r+242=0
We move all terms containing r to the left, all other terms to the right
r=-242
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