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6=(20+2x)/x
We move all terms to the left:
6-((20+2x)/x)=0
Domain of the equation: x)!=0We add all the numbers together, and all the variables
x!=0/1
x!=0
x∈R
-((2x+20)/x)+6=0
We multiply all the terms by the denominator
-((2x+20)+6*x)=0
We calculate terms in parentheses: -((2x+20)+6*x), so:We get rid of parentheses
(2x+20)+6*x
We add all the numbers together, and all the variables
6x+(2x+20)
We get rid of parentheses
6x+2x+20
We add all the numbers together, and all the variables
8x+20
Back to the equation:
-(8x+20)
-8x-20=0
We move all terms containing x to the left, all other terms to the right
-8x=20
x=20/-8
x=-2+1/2
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