Các câu hỏi tương tự
1,tim cac so nguyen x,y biet: -2/x=y/3 va x<0<y
2, Tim cac so nguyen x,y biet:x-3/y-2=3/2 va x-y=4
Tim x,y la so nguyen va x,y>0 sao cho:
1/x+1/y+1/x.y=1/2
Tim cac so nguyen x,y(y>0) biet |xm^2-1|+(y^2-3)=2 tim x nho cach lam nua nha
tim x,y,z la cac so nguyen
a) x-y=0,y+2z=1
b) x+y+z=7
tim cac so nguyen (x,y), biet :
x> 0,y<0 va /x/+/y/=3
Tim so nguyen x,y biet
(x+1)^2+(y-1)^2=0
(x+3)×(y+1)=3
xy-2x=5
Tim so nguyen x,y biet:
a. (x+2).(x+5)>0
b.(x-1).(y-2)=12
Tim tat ca cac cap so nguyen x,y sao cho xy-2x+y+1=0
tim so nguyen a, b biet a lon hon 0 va a.(b-2)=3
tim x,y biet (x-2).(y+1)=23