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dan
x+2y=-13
y-3x=4 /×1/y-3x=4
x+2y=-13/×3/3x+6y=-39
___________________ +
7y = -36
y = 5,14
y-3x=4 /×2/2y-6x=8
x+2y=-13/×1/x+2y=-13
___________________ -
-5x = -5
-x = -5/5
-x = -1
x= 1
maaf kalo cuma bisa eliminasi