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Question

Solve the following equation and verify your answer:
y-(7-8y)9y-(3+4y)=23

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Solution

y-(7-8y)9y-(3+4y)=23or 9y-75y-3=23or 27y-21=10y-6 [After cross multiplication]or 27y-10y=-6+21or 17y=15or y=1517Thus, y=1517 is the solution of the given equation.Check:Substituting y=1517 in the given equation, we get:L.H.S.=9(1517)-75(1517)-3=135-11975-51=1624=23R.H.S.=23 L.H.S.=R.H.S. for y=1517

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