-x/2=y/3=z/4=3则3x+4y+6z的值是

来源：学生作业帮助网 编辑：作业帮 时间：2024/05/04 15:24:42
-x/2=y/3=z/4=3则3x+4y+6z的值是

-x/2=y/3=z/4=3则3x+4y+6z的值是
-x/2=y/3=z/4=3则3x+4y+6z的值是

-x/2=y/3=z/4=3则3x+4y+6z的值是
-x/2=y/3=z/4=3
所以-x/2=3 y/3=3 z/4=3
则x=-6
y=9
z=12
　　代入3x+4y+6z
　　=-18+36+72
　　=90

由-x/2=y/3=z/4=3得
x=-6 y=9 z=12
得出3x+4y+6z=90

-x/2=y/3=z/4=3
解得，x=-6、y=9、z=12
所以，
3x+4y+6z
=-18+36+72
=90

-x/2=y/3=z/4=3 则x=-6 y=9 z=12
故3x+4y+6z=3*(-6)+4*9+6*12=90

x+y/2=z+x/3=y+z/4 x+y+z=27 x+2y=3x+2z=4y+z 求x:y:z (4x-2y-z)-{5x-[8y-2z-(x-2y)]-x-(3y-10z)}=? x/2=y/3=z/4,则x+2y-z/z=? x/6=y/4=z/3,则(x+3y)/(3y-2z) 如果x:y=2:3,y:z=4:3,则x:y:z= 已知：4x-5y+2z=0 x+4y-3z=0则：(x*x+y*y+z*z)/(x*y+y*z+z*x)=____. 已知(x+2y)/2=(y+3z)/3=(z+4x)/4,则x:y:z=? 已知x/2=y/3=z/4,则2x+y-z/3x-2y+z=? x+2y+3z=10,4x+3y+2z=15则x+y+z= 若x/2=y/3=z/4,则3x-2y+5z/x+y+z= 2x+y+3z=10,3x+4y+2z=15,则x+y+z= 已知{x-3y+2z=0 3x-3y-4z+0,则x:y:z=? 已知(x+2y)/3=(y+3z)/4=(z+5x)/5,则x:y:z= 已知x+2y/3=y+3z/4=z+5x/5,则x:y:z=? 已知x+2y/3=y+3z/4=z+5x/5,则x:y:z= 已知x-2y+3z=0,x-3y+4z=0,则x:y:z= 已知2x-y-z=0,3x+4y-2z=0,则x：y：z=?