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12/x=80
We move all terms to the left:
12/x-(80)=0
Domain of the equation: x!=0We multiply all the terms by the denominator
x∈R
-80*x+12=0
We add all the numbers together, and all the variables
-80x+12=0
We move all terms containing x to the left, all other terms to the right
-80x=-12
x=-12/-80
x=3/20
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