The equations are

Since the coefficients of the x-terms, +1and +1, are same,

you can eliminate these terms by subtracting the equations. .

Subtract the equations to eliminate variable x.

  (Write the equations in column form and subtract)

  (Simplify)

Apply division property of equality: Divide each side by negative 4.

                                (Cancel common terms)

                                   (Divide:  )

Now Substitute for y  in either equation to find the value of x.

  (Equation 1)

Apply addition property of equality: Add 2 to each side.

             (Apply additive inverse property: )

                    (Apply additive identity property: )

                          (Add:  )

The solution is .

The solution is .