x + y = 100
3/4 x = 5/6 y -1
x + y = 100
3/4 x = 5/6 y -1
• 難得,五哥認認真真做題,不抬杠,給你點讚~~:) -小學同桌- ♀ (0 bytes) () 03/10/2023 postreply 08:43:09
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