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2x -5y= -22
NB: yang atas sama yang bawah sama2 di kali 2
4x - 2y= 16
4x -10y= -44 -
8y= 60
y= 7,5
2x - y= 8
2x - 7,5= 8
2x = 15,5
x = 7,75
maaf kalo jawabannya salah
2x-5y=-22 -
4y=30
y=15/2
2x-5(15/2)=8
2x-37 1/2=8
2x=8+37 1/2 .2
4x=16+37
4x=53
x=13 1/4
Himpunan=( 13 1/4, 15/2)