Question

" Tentukan nilai Hp SPLD dengan menggunakan Eliinasi"
A. -5x+3y=15
2x+2y=4

Answer 1

-5x + 3y = 15  /2/ -10x + 6y = 30
 2x + 2y = 4   /-5/ -10x -10y = -20
                                         16y = 50
                                              y = 50/16 = 3,12
2x + 2y = 4
2x + 2(50/16) = 4
2x + 6,25 = 4
2x = 4 - 6,25
2x = -2,25
  x = -2,25/2 = -1,12