Hi,

We have to express $\displaystyle X$ in terms of$\displaystyle Y$.

The correct answer is $\displaystyle x = \frac{5y - 2}{y + 3}$

Multiplying both sides by $\displaystyle (5 - X)$ we get

$\displaystyle 5y - xy = 3x + 2$; $\displaystyle 5y - 2 = 3x + xy$; $\displaystyle \frac{5y - 2}{3} = x + xy$

I am going to stop there as I am on the wrong track. I would appreciate your help in finding the solution.

Cheers,

Sean.