X+Y+2Z=16 Y+Z+2X=13 Z+X+2Y=15

问题描述:

X+Y+2Z=16 Y+Z+2X=13 Z+X+2Y=15

3个加起来4X+4Y+4Z=44 X+Y+Z=11
1-4 Z=5
2-4 X=2
3-4 Y=4