513:36=57:x 怎么解
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513:36=57:x怎么解513:36=57:x怎么解513:36=57:x怎么解648516179513:36=57:x513X=36x57x=36x57/513x=4513:36=57:x513
513:36=57:x 怎么解
513:36=57:x 怎么解
513:36=57:x 怎么解
648516179
513:36=57:x
513X=36x57
x=36x57/513
x=4
513:36=57:x
513x=36×57
x=4
513:36=57:x 怎么解
513:36=57:x 怎么解
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