Các câu hỏi tương tự
tim x, y thuoc z biet (x+7 ) (xy + 1)= 9
tim x,y thuoc Z biet xy=x-y
tim x,y thuoc z sao cho
a) xy= x+y
b) xy = x-y
tim x, y thuoc z biet xy-x+2y=3
tim x thuoc Z,biet : (x-1).(xy+3)
1. tim cac cap so nguyen duong (x, y) sao cho:
2 x3 + xy = 11
2. tim cac cap so nguyen duong (x, y, z)sao cho:
x + y + z = x*y*z
3. tim x thuoc z, biet;
|x| = -2003
|x| = |-2003|
minh dang can gap lam. chieu mai phai nop rui
tim x,y thuoc z sao cho:
7x-xy+2y=18
tim x,y thuoc Z biết (x-1)y=3
tim x, y, z thuoc Z sao cho /x-y/+/y-z/+/x-z/=2019