Question

3/x=y/35=-36/84

Answer 1

Ta có:

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

\(\Rightarrow\left\{{}\begin{matrix}\dfrac{3}{x}=\dfrac{-36}{84}\\\dfrac{y}{35}=\dfrac{-36}{84}\end{matrix}\right.\)\(\Rightarrow\left\{{}\begin{matrix}3.84=-36.x\\y.84=-36.35\end{matrix}\right.\)

\(\Rightarrow\left\{{}\begin{matrix}x=\dfrac{3.84}{-36}\\y=\dfrac{-36.35}{84}\end{matrix}\right.\)\(\Rightarrow\left\{{}\begin{matrix}x=-7\\y=-15\end{matrix}\right.\)

Vậy: \(\left\{{}\begin{matrix}x=-7\\y=-15\end{matrix}\right.\)

Answer 2

thui khỏi TLCH nữa t TLCH r