Elimination Method:

The equations are

                 Equation (1)

                 Equation (2)

Multiply by 3 in first equation.

                 Equation (3)

Since the coefficients of y-terms are additive inverses, these terms can be eliminated by adding equations.

Write the equations in column form and add the corresponding columns.

Divide each side by 18.

Now, find the y value by substituting in either equation.

                   (Equation 2)

Add 3 to each side.

Divide each side by 6.

The solution is .