Solve the following system of linear equations:
$\left(-\frac{2}{7},\frac{3}{7}\right)$
$\left(\frac{4}{5},\frac{9}{5}\right)$
$\left(\frac{1}{3},\frac{2}{3}\right)$
$\left(\frac{3}{2},-\frac{5}{2}\right)$
Solve the system of linear equations for :
:
