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85问答库 > 把其中一个乘数原是20,看成30,积增加了50,原来积是多少？

把其中一个乘数原是20,看成30,积增加了50,原来积是多少？

2025-03-15 03:40:03

推荐回答（2个）

回答1：

答将原来的数字设为x，可以得出方程:30x－20x=50解方程10x=50所以原来的数字为50除10，等于5。

回答2：

设另一个不变的乘数为x，根据题意，20x+50=30x，解得x=5，那么原来的积就是20*5=100，望采纳，谢谢！

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