Các câu hỏi tương tự
xy+3x-y=21
Tim cac cap so nguyen xy
Tim cac cap so nguyen x,y
a,x . ( y - 3 ) = -12
b,xy - 3x - y = 0
c,xy + 2x + 2y = -16
tim cap so nguyen x,y biet
x^2-xy-y+7=0
tim cap so nguyen x;y biet (x-1).(xy+2)=5
Tim tat ca cac cap so nguyen x,y sao cho xy-2x+y+1=0
tim cac cap so nguyen (x,y)biet:
xy+3y+x=2
tim cac cap so nguyen x,y
5x + 2y - xy = 16
x^2-x+xy =4
tim cap so nguyen x, y
Tim cac cap so nguyen x,y thoa man
a) xy-5x+y=17
b) x.(y-2)=3 va x>y