The system of equations are and .

Solve the system of equations by elimination method.

Step 1:

Multiply each equation with .

                     (First equation)

           (Multiply each side by )

              (Multiply)

Step 2:

Subtract the equations to eliminate a variable.

                 (Divide each side by )

                               (Cancel common terms)

Step 3:

Substitute into any original equation to find value. 

                     (First equation)

                   (Substitute )

                     (Multiply)

(Subtract from each side)

                               (Apply additive inverse property: )

Therefore, the solution of the system is .

The solution of the system is .