x+2y=1
4x-2y=6
Ditambah
5x=7
x=7/5
7/5+2y=1
2y=1-7/5
2y=-2/5
y=-1/5
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x+2y=1
4x-2y=6
Ditambah
5x=7
x=7/5
7/5+2y=1
2y=1-7/5
2y=-2/5
y=-1/5