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r/10=1.5
We move all terms to the left:
r/10-(1.5)=0
We add all the numbers together, and all the variables
r/10-1.5=0
We multiply all the terms by the denominator
r-(1.5)*10=0
We add all the numbers together, and all the variables
r-15=0
We move all terms containing r to the left, all other terms to the right
r=15
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