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1. x=3 y=-2
2. x=1 y=-1
3. x=-2 y=4
3x+2y=5 |x2| 6x+4y=10
2x-5y =16|x3|6x-15y =48-
>19y=38
Y=38/19
y=2
Substitusikan
2x-5y=16
2x-10=16
2x=6
X=3