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1/2x-40=20
We move all terms to the left:
1/2x-40-(20)=0
Domain of the equation: 2x!=0We add all the numbers together, and all the variables
x!=0/2
x!=0
x∈R
1/2x-60=0
We multiply all the terms by the denominator
-60*2x+1=0
Wy multiply elements
-120x+1=0
We move all terms containing x to the left, all other terms to the right
-120x=-1
x=-1/-120
x=1/120
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