\(\dfrac{x-3}{x-5}=\dfrac{9}{25}\)\(\Leftrightarrow25x-75=9x-45\)\(\Leftrightarrow25x-9x=-45+75\)\(\Leftrightarrow16x=30\)\(\Leftrightarrow x=\dfrac{15}{8}\)Câu trả lời: \(\dfrac{x-3}{x-5}=\dfrac{9}{25}\)\(\Leftrightarrow25x-75=9x-45\)\(\Leftrightarrow25x-9x=-45+75\)\(\Leftrightarrow16x=30\)\(\Leftrightarrow x=\dfrac{15}{8}\)