Question

\(x\) x {\(\dfrac{1}{4}\) + \(\dfrac{1}{5}\)} - {\(\dfrac{1}{7}\) + \(\dfrac{1}{8}\)}

2 : \(x\) = \(x\) : \(\dfrac{8}{49}\)

 

Answer 1

`2 : x = x : 8/49`

`<=> x^2 = 16/49`

`<=> x = +-4/7`