方程组｛x+y=10,2x-3z=10,x+2y+3z=25的解是?

方程组3x+y+2z=10,2x+3y-z=9,x+y+z=6 x+y-z=5,2x+3y+z=10,x-2y-z=20求方程组 方程组 3X-Y+Z=10 X+2Y-Z=6 X+Y+Z=12 方程组{x/2+y/3-z=-5,x/3-y/2+z/2=10,x/2-y/3-z/4=6,求x,y,z 已知,方程组:4x-3y-7z=0 x+2y=10z 则(x-y+z)÷(x+y+z)=—— 解三元一次方程组方程组 -x+2y+3z 2x-2y+5z=13 3x+2y+z=10 解三元一次方程组{2x+y=10,x-y+z=4,3x-y-z=0 解方程组：{x(x+y+z)=6 {y(x+y+z)=9 {z(x+y+z)=10 解方程组：3x+7y+z=31.5,4x+10y+z=42求 x+y+z 方程组7x+5y+3z=26;3x+2y+z=10已知x 解方程组:x+y=5,y+z=7,x+2z=10 方程组：X/7=Y/10=Z/5,X+2Y+3Z=84方程组：X/7=Y/10=Z/5,X+2Y+3Z=84 三元一次方程组,1.x-2y+z=9 2x+y+3z=10 3x+2y1.x-2y+z=92x+y+3z=103x+2y-z2.3x-5y+2z=14x+5y-z=5X-5y+3z=-23.7x+2y-z=76x-y+z=74x+3y+z=94.4x+3y-2z=-75x-6y+z=12x+z=-25.2x+3y-4z=-23x-2y+5z=262x+5z=31 方程组{x+2y-5=0,2y+3z-13=0,3z+x-10=0 解下列三元一次方程组x=2y,2x-z=7,y-3z=10 解三元一次方程组{x/7=y/10=z/5,2x+3y-2z=34 方程组x/7=y/10=z/5,x+2y+3z=84的解是? 解三元一次方程组{x/7=y/10=z/5,x+2y+3z=84