Make c the subject of the equation a(b + c) + \(\frac{5}{d}\) - 2 = 0

Make c the subject of the equation a(b + c) + \(\frac{5}{d}\) - 2 = 0

Mathematics

JAMB 1979

Make c the subject of the equation a(b + c) + \(\frac{5}{d}\) - 2 = 0

A. c = \(\frac{2d - 5 - b}{ad}\)
B. c = \(\frac{2d - 5 - abd}{ad}\)
C. c = \(\frac{2d - 5 - ab}{ad}\)
D. c = \(\frac{5 - 2d - b}{ad}\)

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Correct Answer: Option B

Explanation

a(b + c) + \(\frac{5}{d}\) - 2 = 0

ab + ac + \(\frac{5}{d}\) - 2 = 0

abd + \(\frac{acd}{d}\) + 5 - 2 = ab + ac + 5 - 2d

acd = 2d - 5 - abd

c = \(\frac{2d - 5 - abd}{ad}\)

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Make c the subject of the equation a(b + c) + \(\frac{5}{d}\) - 2 = 0

Correct Answer: Option B

Explanation

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