Question

Tìm các số nguyên x và y,biết :

\(\frac{3}{x}=\frac{y}{35}=\frac{-36}{84}\)

Answer 1

\(\frac{3}{x}=\frac{y}{35}=\frac{-36}{84}\)

ta rút gọn phân số : \(\frac{-36}{84}=\frac{-3}{7}\)

ta có : \(\frac{3}{x}=\frac{y}{35}=\frac{-3}{7}\)

\(\frac{3}{x}=\frac{-3}{7}\Rightarrow x=\frac{3.7}{\left(-3\right)}=-7\)

\(\frac{y}{35}=\frac{-3}{7}\Rightarrow y=\frac{35.\left(-3\right)}{7}=-15\)

Answer 2

                   \(\frac{3}{x}=\frac{y}{35}=\frac{-36}{84}\)

                \(\Rightarrow\frac{3}{x}=\frac{y}{35}=\frac{-3}{7}\)

           Ta có : \(\frac{3}{x}=\frac{y}{35}=\frac{-3}{7}\)

               \(\frac{3}{x}=\frac{-3}{7}\)

               \(\Rightarrow x=\frac{3.7}{-3}=-7\)

                \(\frac{y}{35}=\frac{-3}{7}\Rightarrow y=\frac{-3.35}{7}=-15\)

              Ủng hộ mk nha !!! ^_^

Answer 3

\(\frac{3}{x}=\frac{y}{35}=-\frac{36}{84}\)
Ta có: \(-\frac{36}{84}=-\frac{3}{7}\)
\(\frac{3}{x}=\frac{y}{35}=-\frac{3}{7}\)
\(\frac{3}{x}=\frac{-3}{7}\Rightarrow x=\frac{3\times7}{\left(-3\right)}=-7\)
\(\frac{y}{35}=\frac{-3}{7}\Rightarrow y=\frac{35\times\left(-3\right)}{7}=-15\)
Vậy, \(x=-7\)\(;\)\(y=-15\)