作业帮已知：x+2y+3z=2,3x+y+2z=3,2x+3y+z=4,求x+y+z的值
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已知：x+2y+3z=2,3x+y+2z=3,2x+3y+z=4,求x+y+z的值
已知：x+2y+3z=2,3x+y+2z=3,2x+3y+z=4,求x+y+z的值
已知：x+2y+3z=2,3x+y+2z=3,2x+3y+z=4,求x+y+z的值
x+2y+3z=2,
3x+y+2z=3,
2x+3y+z=4
以上3式相加得
6(x+y+z)=9
x+y+z=3/2