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r/8+5.5=2
We move all terms to the left:
r/8+5.5-(2)=0
We add all the numbers together, and all the variables
r/8+3.5=0
We multiply all the terms by the denominator
r+(3.5)*8=0
We add all the numbers together, and all the variables
r+28=0
We move all terms containing r to the left, all other terms to the right
r=-28
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