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513:36=57:x36x57=513xx=36x57/513x=36/9x=4513:36=57:x513x=3
513:36=57:x 怎么解
513:36=57:x 怎么解
513:36=57:x 怎么解
513:36=57:x
36x57=513x
x=36x57/513
x=36/9
x=4
513:36=57:x
513x=36*57
513x=2052
x=2052/513
x=4
513:36=57:x
513x=36×57
x=4
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