Elimination method:

The system of equations are and .

In the system of the equations, coefficients of -variable are same.

Add the equations to eliminate the -variable and solve the equation.

                         (The resultant equation)

                    (Divide each side by )

                          (Cancel comon terms)

Find .

                     (First equation)

                  (Substitute in the equation) 

      (Add to each side)

                           (Apply additive inverse property: )

Therefore, the solution is and .

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