已知3x=4y=5z,x≠0,则2x-3y+6z/3x-2y+4z 的值为___________________解题过程,谢谢
来源:学生作业帮助网 编辑:作业帮 时间:2024/10/08 14:48:37
xQKsP+u;! 8MadXt@*TJ3Ph_{nU'3"sR4(ᄗE!'!kmĆ0/\Pe(hdscNZb!v_sP(L:-L")x.:1:3:#o`E96P^r>ޘ'n%Lt;86`<)9=b&y,i-^,1٢ [k&Y6/iw
k8k%_iZ*M6
M`%`3{[rM%OqqVrW{]~Ʒ/V
1)$ltgb")yI$VNȶ
YY#ֆVtޱƃ#ZZ.Ȭ| e kSdӀDweǒ::J= !"Ⱦxff<?:}ڼS~|P
已知x+4y-3z=0,4x-5y+2z=0,则x:y:z
已知方程组4x-5y+2z=0 x+2y=3z 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)=____.
三元一次方程组题目x+y-z=11 y+z-x=5 x-y+z=1x+y=4 y+z=3 x+z=5若已知x-3y+2z=0 2x+3y-8z=0, 且xyz≠0,则x:y:z=
已知x-y/x+y=y+z/2(y-z)=z+x/3(z-x),求证8x+9y+5z=0THX..
已知{x-3y+2z=0 3x-3y-4z+0,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=?
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-5y+2z=0 3x-5y-4z=0,求x:y:z
已知2x+5y+4z=15.7x+y+3z=14 则x+y+z=?
已知x+4y=3z,4x-5y=-2z,则x:y:z
已知x+4y-3z=0;4x-5y+2z=0,则3y-5z分之2x-y+3z=?
已知{x+4y-3z=0,4x-5y+2z=0,则2x-y+3z分之3y-5z=?
已知2x-4y-5z=0,-3x+y+4z=0 (xyz≠0)则x/y/z=?
已知2x-4y-5z=0,-3x+y+4z=0,(xyz≠0)则x:y:z=________