xy+3y+x=2
(3+x)y+x=2
(3+x)y+(x+3)=5
(3+x)(y+1)=5
...............tự giải tiếp
xy+3y+x=2
(3+x)y+x=2
(3+x)y+(x+3)=5
(3+x)(y+1)=5
...............tự giải tiếp
Tim cac cap so nguyen (x;y) sao cho x*y=x-y
tim cac cap so nguyen x,y biet /x/+/y/=-5
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 cac gia tri nguyen cua x biet
a, Y=5x+9/ x+3
b, Tim cac cap so nguyen x , y thoa mai he thuc :
(2x-1).(y+4)
tim cac cap so nguyen to x,y: x.y=2x+2y
Tim tat ca cac cap so nguyen x,y sao cho
c) (x - 2) (2y + 1)=4
Tim cac cap so nguyen x;y biet : (2x-1)*(y-4)=-13
Tim cac cap so nguyen x,y thoa man
a) xy-5x+y=17
b) x.(y-2)=3 va x>y
tim cac cap so nguyen x,y
5x + 2y - xy = 16