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

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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
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

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
100x+10y+z=48(x+Y+Z)
x+Z=y+3
100x+10y+z-(100z+10y+x)=198
整理得
52x-38y-47z=0 (1)
x-y+z=3 (2)
99x-99z=198即x-z=2 (3)
由（3）得x=z+2 (4)
代入（2）得y=2z-1 (5)
代入（1）得52（z+2)-38(2z-1)-47z=0
解得z=2
代入（4）（5）中得x=4,y=3

100x+10y+z-(100z+10y+x)=198
100x+10y+z-100z-10y-x=198
99x-99z=198
x-z=2
x=z+2;
x+Z=y+3
z+2+z=y+3
y=2z-1;
100x+10y+z=48(x+Y+Z)
100(z+2)+10y+z=48(2z+y+2)
101z+200+10y=96z+48y+96
5z-38y+104=0
5z-38(2z-1)+104=0
5z-76z+38+104=0
71z=142
Z=2
Y=2z-1=3
X=z+2=5

(x+y-z)(x-y+z)= 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. 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方程组：{x(x+y+z)=6 {y(x+y+z)=9 {z(x+y+z)=10 X+Y+Z=? x/y=(x+z)/(y+z)y/z=(x+y)/(x+z) 已知 x/(y+z)+y/(z+x)+z/(x+y)=1求 (x*x)/(y+z)+(y*y)/(x+z)+(z*z)/(x+y)=? 14x+4y+z=200,x+y+z=100求解x,y,z x+y=8 y+z=12 x+z=10 x+y+z= x+y=8 y+z=12 x+z=10 x+y+z= x+y+z=15 x+5y+10z=70 x,y,z,各是几? x+y+z=15 x+5y+10z=70 x,y,z,各是几? X+Y-Z=15 X+5Y+10Z=70 求：X、Y、Z (y+z)/x=(z+x)/y=(x+y)/z求x+y-z/x+y+z的值紧急..x+y+z=20x+2y+1.5z=367x+10y+6z=100 x+y+z=12 x-y+z=2 x-z+y+a=90 x+y+a+z=100,求x y z a