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8/r=743
We move all terms to the left:
8/r-(743)=0
Domain of the equation: r!=0We multiply all the terms by the denominator
r∈R
-743*r+8=0
We add all the numbers together, and all the variables
-743r+8=0
We move all terms containing r to the left, all other terms to the right
-743r=-8
r=-8/-743
r=8/743
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