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x - 3y = 5 kali 2 2x - 6y = 10 dikurang
7y = -7
y = -7 : 7
y = -1
x - 3y = 5 | x2 = 2x - 6y = 10
2x + y = 3
2x -6y = 10 -
7y = -7
y=
y = -1
* disubtitusikan y= -1, mencari x
2x + y = 3
2x -1 = 3
2x = 3+1
x =
x = 2
jadi y= -1, x = 2