若13a-2=188,則39a-6-5(13a-2)的質為多少?
要算式?
回答 (2)
39a-6-5(13a-2)
=3(13a-2)-5(13a-2)
=-2(13a-2)
=-2*188
=-376
Sol
39a-6-5(13a-2)
=3(13a-2)-5(13a-2)
=-2(13a-2)
=-2*188
=-376
收錄日期: 2021-04-18 14:18:43
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