65/100(x+z)=37/109x+0+0.1

65/100(x+z)=37/109x+0+0.1 14x+4y+z=200,x+y+z=100求解x,y,z (x+y-z)(x-y+z)= x+y+z=12 x-y+z=2 x-z+y+a=90 x+y+a+z=100,求x y z a z+=x>y?++x: Z + X - 6 + X = 11 100X + Z - 693 = 100Z + X 解方程组 要有过程 x+y+z=30 120x=600z 100y=400z 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 z=x X+Y+Z=? x/y=(x+z)/(y+z)y/z=(x+y)/(x+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=27(x+y+z) x+z=y+1 100z+10y+x-100x-10y-z=99 .急. 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)=? (y+z)/x=(z+x)/y=(x+y)/z求x+y-z/x+y+z的值 6x+5y+3z=100 x+y+z=30 求 x y z+x=37 s+x=56 s+z=49 z=( ) x=( ) s=( ) x+y+z=55 y+z+w=58 x+y+w=62 x+z+w=65 x+y=65 x+z=80 y+z=105 求出x y z所代表的数