x+y+z=11 100z+10y+x-100x+10y+z=693 100x+10z+y-100x+10y+z=54解

解三元一次方程组,100x+10y+z=27(x+y+z) {x+y-z=1 (100z+10y+x)-(100x+10 解一道三元一次方程x+y+z=13,y-2=z,100z+10y+x+99=100x+10z+y. (x+y-z)(x-y+z)= 若{x+3y+10z=0 则 (x+y-z)/(x-y+z) 100x+10y+z=27(x+y+z) x+z=y+1 100z+10y+x-100x-10y-z=99 解方程组 100x+10y+z=48(x+Y+Z) x+Z=y+3 100x+10y+z-(100z+10y+x)=198 怎么解 X+Y+Z=? f(x,y,z,w)=x*(x+y)*(x+y+z)*(x+y+z+w) 三元一次方程组数学题x+2y+2z=33x+y-2z=72x+3y-2z=10x-y=2z-x=3y+z=-1x-y-z 解三元一次方程组 x+y=12 x+y+z=10 z-y-z=14 急 (4x-2y-z)-{5x[8y-2y-(x+y)]-x+(3y-10z)]=? kuai x+2y+3z=10,x-y+4z=10,x+3y+2z=2