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12/x*3=12
We move all terms to the left:
12/x*3-(12)=0
Domain of the equation: x*3!=0We multiply all the terms by the denominator
x!=0/1
x!=0
x∈R
-12*x*3+12=0
Wy multiply elements
-36x*3+12=0
Wy multiply elements
-108x+12=0
We move all terms containing x to the left, all other terms to the right
-108x=-12
x=-12/-108
x=1/9
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