If p frac 1 2 and frac 1 p - 1 frac 2 p x find ... - WAEC Mathematics 2008 Question

p = (\frac{1}{2}; \frac{1}{p - 1} = \frac{2}{p + x})

(\frac{1}{\frac{1}{2} - 1} = \frac{2}{\frac{1}{2} + x})

(\frac{1}{\frac{1 - 2}{2}} = \frac{2}{\frac{1 + 2x}{2}})

(\frac{1}{-\frac{1}{2}} = \frac{2}{\frac{1 + 2x}{2}})

-2 = (\frac{4}{1 + 2x} -2(1 + 2x) = 4)

1 + 2x = (\frac{4}{-2})

1 + 2x = -2

2x = -2 - 1

2x = -3

x = -(\frac{3}{2})

x = -1(\frac{1}{2})