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84=6/u
We move all terms to the left:
84-(6/u)=0
Domain of the equation: u)!=0We add all the numbers together, and all the variables
u!=0/1
u!=0
u∈R
-(+6/u)+84=0
We get rid of parentheses
-6/u+84=0
We multiply all the terms by the denominator
84*u-6=0
We add all the numbers together, and all the variables
84u-6=0
We move all terms containing u to the left, all other terms to the right
84u=6
u=6/84
u=1/14
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