JAMB - Mathematics (1980 - No. 15)
Make c the subject of formula v = 1 - \(\frac{a}{5}\)(b + \(\frac{3c}{7}\))
[\(\frac{7}{3}\) + \(\frac{5}{a}\)(v - 1)] + b
[\(\frac{7b}{3}\) + \(\frac{5}{a}\)(v - 1)]
\(\frac{7}{3}\)[b + \(\frac{5}{a}\)(v - 1)]
\(\frac{7}{3}\)[b + \(\frac{5v - 1}{a}\)]