45. Exemplar problems XI

Find the solution of the pair of equations $\frac{x}{10} + \frac{y}{5} - 1 = 0$ and $\frac{x}{8} + \frac{y}{6} = 15$. Hence, find $\lambda$, if $y = \lambda x + 5$.

 

 

$x =$

 

$y =$

 

$\lambda =$