3. tentukakn himpunan penyelsaian sistem persamaan dari 2x - 5y =2 dan x + 5y = 6 jika x,y,e,r menggEliminasi

2x - 5y = 2                     ----> 2x   -  5y = 2
 x + 5y = 6    dikalikan 2 --->  2x + 10y = 12
                                           --------------------- -
                                                    - 15y = -10
                                                          y = 10/15
x + 5y = 6
x + 5 (10/15) = 6
x + 10/3 = 6
          x = 18/3 - 10/3
             = 8/3