2026 NORTHBROOKS P1 Q11

2026 NORTHBROOKS P1 Q11

Secondary 4
4 marks

\(5a=\dfrac{3c}{1-2c}+1\)

  1. Find \(a\) when \(c=-7\).[1]
  2. Rearrange the formula to make \(c\) the subject.[3]

Solution:

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Answer:(a) \(-0.08\) (b) \(c=\dfrac{5a-1}{10a+1}\).

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