Rational equation and subject change
Rational equation and subject change
Secondary 2
3 marks
TGM Original Questions
Optional extension
Express \(x\) as the subject of \(\dfrac{x-m}{p}+\dfrac{x-n}{q}=\dfrac{k}{pq}\).[3]
Assume \(p,q,p+q\ne0\).
Solution:
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Answer:\(x=\dfrac{k+qm+pn}{p+q}\).
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