x+y=10danx-y=2 ap jawabanya

Eliminasikan persamaan
x + y = 10
x - y  =  2
--------------  -
    2y  = 8
      y  = 4

Subtitusikan y = 4 ke "x - y = 2"
x - y = 2
x - 4 = 2
x = 2 + 4
x = 6

Jadi,
x = 6
y = 4

X+y = 10
X-y = 2----->x=2+y

X+y=10
2+y+y=10
2y=10-2
Y=8/2
Y=4

X=2+y
X=2+4=6