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If \(\frac{x}{a+1}+\frac{y}{b}\) 1. Make y the subject of the relation

Mathematics
WAEC 2004
If \(\frac{x}{a+1}+\frac{y}{b}\) 1. Make y the subject of the relation
  • A. \(\frac{b(a-x+1)}{a+1}\)
  • B. \(\frac{a+1}{b(a-x+1)}\)
  • C. \(\frac{a(b-x+1)}{b+1}\)
  • D. \(\frac{b}{a(b-x+1)}\)
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Correct Answer: Option A
Explanation
If \(\frac{bx+y(a+1)}{b(a+1)}=1\\
bx + ya + y = ba + b; y(a+1) = ba+b-bx\\
y(a+1)=b(a+1-x); y = \frac{b(1+a-x}{a+1}\)
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Post-UTME Past Questions - Original materials are available here - Download PDF for your school of choice + 1 year SMS alerts
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WAEC and NECO CBT App for Mobile Devices - Candidates, Schools, Centres, Resellers - 100% Offline -Download Now
Post-UTME Past Questions - Original materials are available here - Download PDF for your school of choice + 1 year SMS alerts