September 2018 2 18 Report
A.x+y=16 dan x-y=0
b.2x + y=23 dan 4x-9=18
c.3x +2y -13=0 dan 3x=2y+5
d.3x -y + 14=0 dan 2x +y=-1
e.7x + 3x=27 dan 5x +7y=17

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