$\"\"$

The system of equations is $\"\"$

The equation $\"\"$ can be written as $\"\"$ .

To know the value of $\"\"$ we should eliminate $\"\"$ .

Multiply equation $\"\"$ with $\"\"$ and Multiply equation $\"\"$ with $\"\"$ . $\"\"$

$\"\"$

Substiute the value of $\"\"$ in equation $\"\"$ .

$\"\"$

The solution of the system is $\"\"$ .