若|x+2y-5|+(2y+3z-13)㎡+(3z+x-10)㎡=0,试求x,y,z的值.
来源:学生作业帮 编辑:搜搜做题作业网作业帮 分类:数学作业 时间:2024/05/07 07:40:42
若|x+2y-5|+(2y+3z-13)㎡+(3z+x-10)㎡=0,试求x,y,z的值.
x+2y-5=0 (1)
2y+3z-13=0 (2)
3z+x-10=0 (3)
(1)-(3)
2y-3z+5=0 (4)
(4)+(2)
4y-8=0
y=2
z=(13-2y)/3=3
x=5-2y=1
2y+3z-13=0 (2)
3z+x-10=0 (3)
(1)-(3)
2y-3z+5=0 (4)
(4)+(2)
4y-8=0
y=2
z=(13-2y)/3=3
x=5-2y=1
若|x+2y-5|+(2y+3z-13)㎡+(3z+x-10)㎡=0,试求x,y,z的值.
若/x+2y-5/+(2y+3z-13)²+(3z+x-10)²=0,试求x,y,z的值.
若x/3=y/4=z/5,求x+y+z/3x-2y+z的值.
若x/2=y/3=z/4不等于0,求x+y+z/x+y-z的值
已知x::y:z=3:4:5,(1)求x+y分之z的值;(2)若x+y+z=6,求x,y,z.
已知x+y-z=0,2x-y+2z=0 求(3x-2y+5z)/(5x-3y+2z)的值
已知x+4y+3z=3x-2y-5z=0,求x+2y-z/2x-3y+7z的值
已知x^3+y^3-6x+2y+z+3+10=0,求(x-y+z)(x+y-z)的值.(z+3)是绝对值
已知x,y,z,同时满足方程x+3y-5z=0,2x-y-3z=0求x:y:z的值
已知{3x+4y+5z=0,2x+3y-4z=0,求x+y+z/x-y+z的值.
已知2x+3y-4z=0,3x+4y+5z=0,求x+y+z/(除以)x-y+z的值.
已知2x+3y-4z=0,3x+4y+5z=0,求x+y+z/x-y+z的值.