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3x+5=1/2(4x+20)
We move all terms to the left:
3x+5-(1/2(4x+20))=0
Domain of the equation: 2(4x+20))!=0We multiply all the terms by the denominator
x∈R
3x*2(4x+20))-(1+5*2(4x+20))=0
Wy multiply elements
6x^2(4+10x(4=0
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