Question

x;y;z=2;3;4,2x+y+z=22

Answer 1

x:y=2:3得:

y=(3/2)x

x:z=2:4得:

z=2x

又因:2x+y+z=22

即2x+(3/2)x+2x=22

所以 x=4

y=6 z=8

证毕.

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