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x+15=1/2(9x-12)
We move all terms to the left:
x+15-(1/2(9x-12))=0
Domain of the equation: 2(9x-12))!=0We multiply all the terms by the denominator
x∈R
x*2(9x-12))-(1+15*2(9x-12))=0
Wy multiply elements
2x^2(9+30x(9=0
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