Elimination Method:

The equations are

               Equation (1)

                       Equation (2)

Multiply the second equation by 1.8.

             Equation (3)

Since the coefficients of the x-terms are additive inverses, you can eliminate these terms by subtracting the equations. Subtract the equations to eliminate variable x.

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

Apply division property of equality: if a = b then 

Divide each side by negative 0.48.

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

                        (Equation 2)

Add 11.7 to each side.

The solution is .