初等数论 求不定方程x(2)+y(2)=z(2)的满足条件(x,y)=1,2|x,0
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
已知实数x,y满足条件{2x-y+1≥0,2x+y≥0,x≤1,求z=x+3y的最小值.
已知有理数x、y、z满足条件|x-z-2|+(3x-6y-7)^2+|3y+3z-4|=0,求x、y、z
已知x、y、z满足方程组:x+y-z=6;y+z-x=2;z+x-y=0 求x、y、z的值
解不定方程x+y+z=20 3x+2y+z=50
若实数x,y,z满足条件√x+√y-1+√z-2=1/4(x+y+z+9),求xyz的值
已知x,y,z满足x+y+2z=1,x²+y²+6z+1.5=0,求x,y,z的值
已知x,y,z满足方程组{x+y-z=6{y+z-x=2{z+x_y=0,求x,y,z的值
若有理数x,y,z满足等式:(x-1)的平方+(2x-y)的平方+|3x-z|=0,求x+y+z的值
已知x,y,z满足条件(x-2y-4)²+(2y+z)²+丨x-4y+z丨=0,求3x+y-z的值
若有理数x、y、z满足等式(x-1)^2+(2x-y)^4+|x-3z|=0,求x、y、z的值
求满足下列条件的所有正整数解3x+2y-z=4,2x-y+2z=6,x+y+z<7