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Question

Solve the following equation and verify your answer:
x+2x+5=xx+6

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Solution

x+2x+5=xx+6or x2+2x+6x+12=x2+5x [After cross multiplication]or x2-x2+8x-5x=-12or 3x=-12or x=-123or x=-4Thus, x=-4 is the solution of given equation.Check:Substituting x=-4 in the given equation, we get:L.H.S.=-4+2-4+5=-2R.H.S.=-4-4+6=-2 L.H.S.=R.H.S. for x=-4.

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