The equations are $\"\"$ .

\

$\"\"$

\

$\"\"$

\

Multiply 2 to equation (1 ).

\

$\"\"$

\

$\"\"$

\

Subtract equation (2) from equation (3).

\

$\"\"$

\

$\"\"$

\

$\"\"$

\

Substitute the value $\"\"$ in equation (2).

\

$\"\"$

\

The solutions for $\"\"$ and for $\"\"$ .

\