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1/2x(6+x)=x+4
We move all terms to the left:
1/2x(6+x)-(x+4)=0
Domain of the equation: 2x(6+x)!=0We add all the numbers together, and all the variables
x∈R
1/2x(x+6)-(x+4)=0
We get rid of parentheses
1/2x(x+6)-x-4=0
We multiply all the terms by the denominator
-x*2x(x+6)-4*2x(x+6)+1=0
Wy multiply elements
-2x^2(x-8x(x+1=0
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