tim tat ca cac so tu nhien (x;y)sao cho 5 x+9999 =20y
tim cac cap so nguyen x,y biet /x/+/y/=-5
Tim cac cap so tu nhien x,y biet
a) ( x - 3 ) . ( y + 5 ) = 13
tim cac cap so nguyen (x,y)biet:
xy+3y+x=2
Tim cac cap so nguyen x;y biet : (2x-1)*(y-4)=-13
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)
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 cap so x,y biet
g)3x + 4y - xy = 15
h)5x + 2y - xy = 16
tim(x;y) biet -|2x+4| -|y+5| lon hon bang 0 .Tim cap (x;y)
