｛2x+3y=3 4x-y-13=0

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｛2x+3y=34x-y-13=0｛2x+3y=34x-y-13=0｛2x+3y=34x-y-13=02x+3y=3,即3y=3-2x,y=(3-2x)/3=1-2/3x4x-y-13=0,即y=4x

｛2x+3y=3 4x-y-13=0
｛2x+3y=3 4x-y-13=0

｛2x+3y=3 4x-y-13=0
2x+3y=3,即3y=3-2x,y=(3-2x)/3=1-2/3x
4x-y-13=0,即y=4x-13
1-2/3x=4x-13,得出x=3
代入y=4x-13=-1
所以x=3,y=-1