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2x - y = 3 |x1|
2x + 4y = 8
2x - y = 3
---------------- -
5y = 5
y = 1
2x + 4(1) = 8
2x + 4 = 8
2x = 4
x =2
Hp . {(2,1)}
2x-y = 3
eliminasi y:
x+2y = 4
4x-2y = 6 (+)
5x = 10
x = 2...............y = (4-x)/2
y = (4-2)/2
y = 1
HP = (2,1)