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5x-10y-3x+9y=-1
2x-1y=-1
pada saat x=0 maka 2(0)-y=-1 jadi y=1
pada saat y=0 maka 2x-0=-1
jadi 2x=-1 x=-1/2
HP {-1/2,1)
3(y-x)+2(x-y)=2
3y-3x+2x-2y=2
-1x+1y=2
pada saat y=0 maka -1x+1(0)=2
jadi -1x=2 x=-2
pada saat x=0 maka -1(0)+1y=2
jadi 1y=2 y=2
HP{-2,2)
5x-10y-3x+9y = -1
2x-y = -1
3(y-x) +2(x-y) = 2
3y-3x+2x-2y = 2
-x+y = 2
2x - y = -1
-x + y = 2 + jalan kebawah
x = 1
-x + y = 2
-1 + y = 2
y = 2 + 1
y = 3
jadi himpunan penyelesaian (1 , 3)