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(r/3r)*12=2
We move all terms to the left:
(r/3r)*12-(2)=0
Domain of the equation: 3r)*12!=0We add all the numbers together, and all the variables
r!=0/1
r!=0
r∈R
(+r/3r)*12-2=0
We multiply parentheses
12r-2=0
We move all terms containing r to the left, all other terms to the right
12r=2
r=2/12
r=1/6
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