$\"\"$

The equations are $\"\"$ and $\"\"$ .

$\"\"$ ---------------------> (Equation 1)

$\"\"$ --------------------> (Equation 2)

Since $\"\"$ , substitute 3x for y in second equation.

$\"\"$

Divide each side by 15.

$\"\"$

Substitute $\"\"$ in the first equation.

$\"\"$

$\"\"$ \ \ $\"\"$

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