方程组2x-y+z=3 5x+2y+z=7 x+y-z=5 x=?y=?z=?

问题描述:

方程组2x-y+z=3 5x+2y+z=7 x+y-z=5 x=?y=?z=?

x = 8/3,
y = -4/3,
z = -11/3