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r-2/2=7/8
We move all terms to the left:
r-2/2-(7/8)=0
We add all the numbers together, and all the variables
r-2/2-(+7/8)=0
We add all the numbers together, and all the variables
r-1-(+7/8)=0
We get rid of parentheses
r-1-7/8=0
We multiply all the terms by the denominator
r*8-7-1*8=0
We add all the numbers together, and all the variables
r*8-15=0
Wy multiply elements
8r-15=0
We move all terms containing r to the left, all other terms to the right
8r=15
r=15/8
r=1+7/8
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