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1/2x-20=140
We move all terms to the left:
1/2x-20-(140)=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-160=0
We multiply all the terms by the denominator
-160*2x+1=0
Wy multiply elements
-320x+1=0
We move all terms containing x to the left, all other terms to the right
-320x=-1
x=-1/-320
x=1/320
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