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-5x+y=-27
y=-27+5x
2x-3(-27+5x)=16
2x +81-15x=16
-13x=16-81
-13x=-65
x=65/13
x=5
2(5)-3y=16
10-3y=16
-3y=16-10
-3y=6
y=-2
jadi x=5 dan y=-2 {5,-2}