\( \begin{array}{ll}\text { a) } \frac{-4}{1,2}=\frac{x}{-3,6} & \text { b) } \frac{52}{2 x-1}=\frac{13}{30} \\ \text { biê̂t: a) } x: 2=y:(-5) \text { và } x-y=7\end{array} \)
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Did you know that equations like these can represent real-world scenarios? For example, ratios can help us understand proportions in cooking or mixing ingredients. If you have a recipe that needs to scale up or down, knowing how to manipulate these ratios can save your dish from disaster! If you're cooking for a crowd, mastering ratio equations can ensure everyone gets enough food. When solving equations like the ones presented, many people make the mistake of neglecting to multiply each side carefully. It's crucial to keep track of your conversions and operations—double-check each computation step! Common pitfalls include mixing up negative signs or failing to simplify fractions correctly. Taking a moment to write everything out can help avoid these common errors and lead you to the right solution faster!