①X+Y-Z=2 ②4Z-2Y+3Z+8=0 ③X+3Y-3Z-6=0三元一次方程求XYZ应是①X+Y-Z=2 ②4X-2Y+3Z+8=0 ③X+3Y-3Z-6=0
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①X+Y-Z=2②4Z-2Y+3Z+8=0③X+3Y-3Z-6=0三元一次方程求XYZ应是①X+Y-Z=2②4X-2Y+3Z+8=0③X+3Y-3Z-6=0①X+Y-Z=2②4Z-2Y+3Z+8=0③
①X+Y-Z=2 ②4Z-2Y+3Z+8=0 ③X+3Y-3Z-6=0三元一次方程求XYZ应是①X+Y-Z=2 ②4X-2Y+3Z+8=0 ③X+3Y-3Z-6=0
①X+Y-Z=2 ②4Z-2Y+3Z+8=0 ③X+3Y-3Z-6=0三元一次方程
求XYZ
应是
①X+Y-Z=2 ②4X-2Y+3Z+8=0 ③X+3Y-3Z-6=0
①X+Y-Z=2 ②4Z-2Y+3Z+8=0 ③X+3Y-3Z-6=0三元一次方程求XYZ应是①X+Y-Z=2 ②4X-2Y+3Z+8=0 ③X+3Y-3Z-6=0
2式很奇怪啊.请检查一下是否应该是4X.谢谢
2y+z=3y ① ,x+3y-z=8,② x+y+2z=13③ 求x,y,z
解方程组x+y/2=z+x/3=y+z/4①x+y+z=27②
解三元一次方程组 ①2x-y+z=1 3x+y -2z=2 X+2y-z=3 ②x-4y+z=-3 2x+Y-Z=18 X-Y-Z=7 ③4x+4y+2z=7 6X-4y-z=6 2x-y+z=1
①x+y+z=6 3x-y+2z=12 x-y-3z=-4 ②x+y-z=2 4x-2y+3y+8=0 x+3y-2z-6=0③x/3=y/2 y/4=z/5 x+y+z=60三元一次方程
x+2y=3x+2z=4y+z 求x:y:z
(x*x+2)(y*y+4)(z*z+8)=64xyz,求x,y,z
x+y/2=z+x/3=y+z/4 x+y+z=27
(4x-2y-z)-{5x-[8y-2z-(x-2y)]-x-(3y-10z)}=?
(4x-2y-z)-{5x-[8y-2z-(x+y)]-2(3y-10z)}=?好难啊
X/10=Y/8=Z/9,则X+Y+Z/2Y-3Z
①3x-4y+z=14x+5y+2z=172x+2y-z=3② x:y=3:2y:z=5:4x+y+z=66
x=y/z=z/3,x+y+z =12,求2x+3y+4z是多少,
已知x-y/x+y=y+z/2(y-z)=z+x/3(z-x),求证8x+9y+5z=0THX..
①5x-4y+4z=132x+7y-3z=193x+2y-z=18②y=2x-75x+3y+2z=23x-4z=4
试证明(x+y-2z)+(y+z-2x)+(z+x-2y)=3(x+y-2z)(y+z-2x)(z+x-2y)
已知(x+y)(x+z)=x,(y+z)(y+x)=2y,(z+x)(z+y)=3z,求x,y,z
已知x/2=y/4=z/7,求①x:y:z.②若2x+y+3z=58,分别求x,y,z的值.③求x+y/x+z的值.
2x+z=10 x+y-z=4 3x-y-z=0