x+2y+3z=12x+3y+z=23x+y+2z=3.
问题描述:
.
x+2y+3z=1 2x+3y+z=2 3x+y+2z=3
答
x+2y+3z=1 ①2x+3y+z=2 ②3x+y+2z=3 &nbs...
.
x+2y+3z=1 2x+3y+z=2 3x+y+2z=3
x+2y+3z=1 ①2x+3y+z=2 ②3x+y+2z=3 &nbs...