解方程组2x+y+x=10 x+2y+z=-6 x+y+2z=8

解方程组2x+y+x=10 x+2y+z=-6 x+y+2z=8 已知x、y、z满足方程组：x+y-z=6；y+z-x=2；z+x-y=0 求x、y、z的值 解方程组{3x+y-z=4,2x-y+3z=12,x+y+z=6} 解方程组：x+y+z=4,x+y+2z=5,3x+y-z=6 如何解方程组(x+2y)(x+2z)=-16,(y+2z)(y+2x)=8,(z+2x)(z+2y)=-7 解方程组2x+y-3z=1,x-2y+z=6,3x-y+2z=9求x,y,z的值 解方程组 2x+y+z=7 x+2y+z=8 x+y+2x=9 解方程组2x=3y=6z,x+2y+z=16 已知x,y,z满足方程组｛x+y-z=6{y+z-x=2{z+x_y=0,求x,y,z的值 解方程组{6x=4y=3z,2x+y+z=22 解方程组：x：y：z=4：7：8,x+y+2z=54 三元一次方程组!急已知x,y,z满足方程组x+y-z=6y+z-x=2z+x-y=0