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18=1/2x+4
We move all terms to the left:
18-(1/2x+4)=0
Domain of the equation: 2x+4)!=0We get rid of parentheses
x∈R
-1/2x-4+18=0
We multiply all the terms by the denominator
-4*2x+18*2x-1=0
Wy multiply elements
-8x+36x-1=0
We add all the numbers together, and all the variables
28x-1=0
We move all terms containing x to the left, all other terms to the right
28x=1
x=1/28
x=1/28
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