Question

[titania erza scarlet]

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x/ -7 = y/2 và x + 2y = -6

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Answer 1

[I am➻Minh]

\(\frac{x}{-7}=\frac{y}{2}\Rightarrow\frac{x}{-7}=\frac{2y}{4}=\frac{x+2y}{-7+4}=-\frac{6}{-3}=2\)

\(\Rightarrow\hept{\begin{cases}x=-14\\y=4\end{cases}}\)

Vậy ....

Answer 2

[Nguyễn Nhật Nguyên]

\(\frac{x}{-7}=\frac{y}{2}\\ \Rightarrow\frac{x}{-7}=\frac{2y}{4},ap_{ }dung_{ }tinh_{ }chat_{ }day_{ }ti_{ }so_{ }bang_{ }nhau\\ \)

\(\frac{x}{-7}=\frac{2y}{4}=\frac{x+2y}{-7+4}=\frac{-6}{-3}=2\\ \)

\(Co_{ }\frac{x}{-7}=2\Rightarrow x=-14\\ \frac{y}{2}=2\Rightarrow y=4\)