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X-5=3/4(X-12)
We move all terms to the left:
X-5-(3/4(X-12))=0
Domain of the equation: 4(X-12))!=0We multiply all the terms by the denominator
X∈R
X*4(X-12))-(3-5*4(X-12))=0
Wy multiply elements
4X^2(X-20X(X=0
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