7x+2y-z=7 9x+4y+z=10 5x-3y+6z=-3
问题描述:
7x+2y-z=7 9x+4y+z=10 5x-3y+6z=-3
答
x = 27/46,y = 175/138,z = -49/138
7x+2y-z=7 9x+4y+z=10 5x-3y+6z=-3
x = 27/46,y = 175/138,z = -49/138