Question

[Kim Võ]

\(\dfrac{x}{5}=\dfrac{3}{y}\)Tìm số nguyên x biết

Answer 1

[Kirito]

X=15

Answer 2

[Nguyễn Huy Tú]

\(\dfrac{x}{5}=\dfrac{3}{y}\Rightarrow xy=15\)

\(\Rightarrow x;y\inƯ\left(15\right)=\left\{\pm1;\pm3;\pm5;\pm15\right\}\)

x	1	-1	3	-3	5	-5	15	-15
y	15	-15	5	-5	3	-3	1	-1