对于等式y=⅓x+6,x满足条件时,y>4;y₁=x+3,y₂=-x+1.当y
对于等式y=⅓x+6,x满足条件时,y>4;y₁=x+3,y₂=-x+1.当y
当x,y满足条件x>=0,y
当自变量x的取值满足什么条件时,函数y=3x+8的值满足y=-7,y>0 y
已知{x=4 y=-2与{x=-2 y=-5都满足等式y=kx+b.1.求kb的值 2.当x=8时,求y的值 3.当y=
已知:x,y满足等式(√x-2y-4 )+ (2x-3y-7)2=0,求7x三次方-8y的平方根
设x、y是有理数,并且x、y满足等式x的平方+2y+y√3=17-4√3,求x、y的值.
设x、y是有理数,并且x、y满足等式x^2+2y+√3y=17-4√3 求x+y的值
已知实数x.y满足根号(x+y-8)+根号(8-x-y)=根号(3x-y-4)+根号(x-2y+7),求x,y
已知x,y满足x²+y²-4x+6y+13=0则(3x+y)²-(3x+y)(3x-y)的
1.已知x:y=2:3,且2x+y/2-1=x-y/3,求x,y的值.2.已知x,y的值满足等式x+1/2=y+3/4=
x,y,z,满足等式3x+4y/2=6x+5y/3=4x-y+13z/2,求x+2y+z/2x+3y-z的值
x,y,z满足等式(3x+4y)/2=(6x+5y)/3=(4x-y+13z)/2,那么(x+2y+z)/(2x+3y-