计算X+2Y+3Z=10X+2Y+3Z=104X+3Y+2Z=15求x+y+z=?

问题描述:

计算X+2Y+3Z=10
X+2Y+3Z=10
4X+3Y+2Z=15
求x+y+z=?

一,X+2Y+3Z=10
二,4X+3Y+2Z=15
一 + 二 = 5x+5y+5z = 25
x+y+z=5