若X+2Y+3Z＝10,4X+3Y+2Z＝15则X+Y+Z等于多少?
来源：学生作业帮助网 编辑：六六作业网 时间：2024/12/20 03:37:14
若X+2Y+3Z＝10,4X+3Y+2Z＝15则X+Y+Z等于多少?若X+2Y+3Z＝10,4X+3Y+2Z＝15则X+Y+Z等于多少?若X+2Y+3Z＝10,4X+3Y+2Z＝15则X+Y+Z等于多
若X+2Y+3Z＝10,4X+3Y+2Z＝15则X+Y+Z等于多少?
若X+2Y+3Z＝10,4X+3Y+2Z＝15则X+Y+Z等于多少?
若X+2Y+3Z＝10,4X+3Y+2Z＝15则X+Y+Z等于多少?
前后两式相加然后除以5
5X+5Y+5Z=25
X+Y+Z=5
2x+z=10 x+y-z=4 3x-y-z=0
x=y/z=z/3,x+y+z ＝12,求2x+3y+4z是多少,
若x+2y-4z＝0 3x+y-z＝0 求x：y：z
若X Y Z 满足方程组 X-2Y＋3Z＝0 2X-3Y＋4Z＝0 则 X：Y：Z ＝?
(4x-2y-z)-{5x-[8y-2z-(x-2y)]-x-(3y-10z)}=?
化简-(-3x-y+2z)-{-x+【4x-(x-y-z)-3x+2z}
若x+y+z=3y=2z,则x/x+y+z=?
x+2y=3x+2z=4y+z 求x:y:z
x+y/2=z+x/3=y+z/4 x+y+z=27
数学--整式运算4(x-y+z)-2(x+y-z)-3(-x-y-z)
(4x-2y-z)-{5x-[8y-2z-(x+y)]-2(3y-10z)}=?好难啊
{2x+y=10 {x-y+z=4 {3x-y-z=0
求化简(x+3y+2z)(x-3y+6z)(x+3y+4z-2z)(x-3y+4z+2z)
X/10=Y/8=Z/9,则X+Y+Z/2Y-3Z
因式分解Z^2(x-y)-4(x-y)-3Z(y-z)
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
若X+2Y+3Z＝10,4X+3Y+2Z＝15则X+Y+Z等于多少?