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2x + y = 5
substitusi
x = 1
2 + y = 5
y = 3
x = 2
4 + y = 5
y = 1
x=3
6 + y = 5
y = -1
x = 4
8 + y = 5
y = -3
x= 5
10 + y = 5
y = -5
tidak terhingga.
Hp = {{1,3},{2,1}} karena hp pada bil .asli