WAEC - Mathematics (2007 - No. 49)

make w the subject of the relation \(\frac{a + bc}{wd + f}\) = g
\(\frac{a + bc - fg}{dg}\)
\(\frac{a - bc + fg}{dg}\)
\(\frac{a + bc - f}{dg}\)
\(\frac{a + bc - dg}{dg}\)

Explanation

\(\frac{a + bc}{wd + f}\) = g(cross multiply)

a = bc + wdg + fg

wdg = a + bc - fg

w = \(\frac{a + bc - fg}{dg}\)

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