若13a-2=188,則39a-6-5(13a-2)的質為多少? 要算式?

2016-01-05 10:58 am

回答 (2)

2016-01-06 10:25 am
39a-6-5(13a-2)
=3(13a-2)-5(13a-2)
=-2(13a-2)
=-2*188
=-376
2016-01-05 12:11 pm
Sol
39a-6-5(13a-2)
=3(13a-2)-5(13a-2)
=-2(13a-2)
=-2*188
=-376


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