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-8(2r)=-32/2
We move all terms to the left:
-8(2r)-(-32/2)=0
We add all the numbers together, and all the variables
-82r-(-16)=0
We add all the numbers together, and all the variables
-82r+16=0
We move all terms containing r to the left, all other terms to the right
-82r=-16
r=-16/-82
r=8/41
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