如何解y÷z=(x+100)÷(x-100)=(3x+300)÷(x+300)的方程?

如何解y÷z=(x+100)÷(x-100)=(3x+300)÷(x+300)的方程? (x+y+z)÷10=x+1.1 y+x=z-80+y-1 z-y=8x+y+8 x+z÷y=? 解方程 Y=X+Z Y-Z=2 100Z+10Y+X-(100X+10Y+Z)=99 Y=X+ZY-Z=2100Z+10Y+X-(100X+10Y+Z)=99 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=27(x+y+z) x+z=y+1 100z+10y+x-100x-10y-z=99 .急. 解方程组：{x(x+y+z)=6 {y(x+y+z)=9 {z(x+y+z)=10 已知,方程组:4x-3y-7z=0 x+2y=10z 则(x-y+z)÷(x+y+z)=—— 如何解3x-y+2z=3,3x-y+2z=3,2x+y-3z=11,x+y+z=12 如何解方程组(x+2y)(x+2z)=-16,(y+2z)(y+2x)=8,(z+2x)(z+2y)=-7 解一道三元一次方程x+y+z=13,y-2=z,100z+10y+x+99=100x+10z+y. 2x+y=10 4y+z=21 5x-z=10如何解 x+y+z=15 x+5y+10z=70 如何算 解方程组：X+Y+Z=100,10X+5Y+0.5Z=100 解方程x+y+z=19,4x+10y+3z=100 x+y+z=11 100z+10y+x-100x+10y+z=693 100x+10z+y-100x+10y+z=54解方程组 解方程：x+y+z=11 100x+10y+z=100z+10y+x+693 100z+10x+y=100z+10y+x+54 方程组｛100x+10y+z=48(x+y+z) ｛x+z=y+3 ｛100x+10y+z=100z+10y+x+198 怎么解 100x+10y+z=48(x+Y+Z) x+Z=y+3 100x+10y+z-(100z+10y+x)=198 怎么解好的话多给分 解三元一次方程组,100x+10y+z=27(x+y+z) {x+y-z=1 (100z+10y+x)-(100x+10y+z）=99