find the solution to each of the following system of equations by elimination for example 2x+y=5 and 3x-2y=11

3x-2y=11 |×1

2x+y=5    |×2

⇒3x-2y =11}ini

   4x+2y=10}dikurangkan ini

⇒-x=1 ⇔x=-1 dan y = 2x+y=5

                                     2×-1+y =5

                                     -2+y=5

                                           y=7