解三元一次方程组:5x+y+z=1(1) 2x-y+2z=1(2) x+5y-z=-4(3) 急解三元一次方程组:5x+y+z=1(1)2x-y+2z=1(2)x+5y-z=-4(3)
问题描述:
解三元一次方程组:5x+y+z=1(1) 2x-y+2z=1(2) x+5y-z=-4(3) 急
解三元一次方程组:
5x+y+z=1(1)
2x-y+2z=1(2)
x+5y-z=-4(3)
答