x+y=84 z+y=95 x+z=107 2(x+y+z)=84+95+107=286 x+y+z=143 x=(x+y+z)-(z+y)=143-95=48 y=(x+y+z)-(z+x)=143-107=36 z=(x+y+z)-(x+y)=143-84=59
X=Y=84 Z+Y=95x=y=84z+y=95x+z=107问x=? y=? z=?计算过程咋算得
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