\(xy-2x=y+1\)
\(x\left(y-2\right)=y+1\)
\(x=\frac{\left(y+1\right)}{y-2}=\frac{\left(y-2\right)+3}{y-2}=1+\frac{3}{y-2}\)
x nguyen => y-2={-1,-3,1,3}
y={1,-1,3,5}
x={-2,0,4,2}
b) (2x + 1)(y + 1) = 6
c) xy + x = 5
d) xy + x + y = 2
Tìm x,y thuộc Z:
a) 2y-5x-3y+8=0
b)xy-x-y-4=0
c)xy-x+2y-5=0
d) 2x-xy-1-y=0
e)xy+2x-4y=13
f)2xy-2x+y-6=0
g)2y-xy-2x= -1
Giúp mk đi mk đang cần gấp lắm.Ai nhanh mình tick cho
tìm x,y thuộc z
1)xy+2x-2y-5=0
2)3x-xy-y+2=0
3)xy+2x-y=6
4)xy+3x+2y=-1
5)xy+x=7xy+16
giai toan giup minh nhe
Bai 1 : Tim cac so nguyen x , y biet :
a, x +xy + y = 9
b, xy - 2x -3y = 5
c, xy - 2x + 5y = 2
Tìm các số nguyên x, y thỏa mãn:
a. (x - y - 2) . (y + 1) = 5
b. xy + 2x + y = 9
c. xy - 2x + 3y = 17
a,xy-x+y=1
b,xy+3x-2y=0
c,2x-xy+4x=3-y
a,(2x-1)(y+1)=14
b, xy=x+y
c, xy=x-y
1) tìm các số nguyên x,y,z biết :
a)xy-x-y = -1
b) xy-2x+y = 5
c) (x^2+xy)+9xy)=4
d)xy+y =5
(x-3)(y-3)=9
(x-1)(xy+1)=2
(2x+1)(3y-2)=-55
xy-2x=5
(x-3).(y+5)=-17
(x+1).(xy-2)=11
xy-7x+y=-22
xy-3x+y =-20
xy-5y-2x=-41
