Ta có:
\(\frac{x}{3}=\frac{4}{y}\)
=> x.y=3.4
x.y=12
Ta có bảng các cặp số x;y thuộc Z sau:
| x | -12 | -6 | -4 | -3 | -2 | -1 | 1 | 2 | 3 | 4 | 6 | 12 |
| y | -1 | -2 | -3 | -4 | -6 | -12 | 12 | 6 | 4 | 3 | 2 | 1 |
HAND!!!!
Tim cac cap so nguyen x,y thoa man
a) xy-5x+y=17
b) x.(y-2)=3 va x>y
Tim cap so nguyen x va y biet (x +2).( y-3)=5
so cac cap (xy)nguyen thoa man :x>y va x/9=7/y
tim cap so nguyen x va y biet x/3=3/y+1/6
lam on
so cap x;y nguyen thoa man x>y va x/5=7/y la giup mik nhe mik tik cho !
4/x=5-2y/3
tim cac cap so nguyen (x,y). thoa man
giup mik voi de thi thu day ai giup dc thi mik tik cho
so cac cap (x;y) tu nguyen thoa man : x/5 - 4/y = 1/3
a, co bao nhieu cap so nguyen ( x,y ) thoa man x + y=1
b. co bao nhieu cap so nguyen ( x,y ) thoa man x.2 + y =1
so cap so nguyen x,y thoa man dieu kien 3/x+y/3=5/6 la ... cap
