更新1:
希望有更詳盡的介紹和步驟
為什麼4x-3y+6y+3y=10x?
回答 (1)
2018-10-12 11:14 pm
為什麼4x－3y+6y+3y=10x?
Sol
4x－3y+6y+3y
=4x+(－3y+6y+3y)
=4x+(－3+6+3)y
=4x+6y
or
4x－3y+6x+3y
=(4x+6x)+(－3y+3y)
=(4+6)x+(－3+3)y
=10x+0y
=10x
Sol
4x－3y+6y+3y
=4x+(－3y+6y+3y)
=4x+(－3+6+3)y
=4x+6y
or
4x－3y+6x+3y
=(4x+6x)+(－3y+3y)
=(4+6)x+(－3+3)y
=10x+0y
=10x
收錄日期: 2021-04-18 18:12:00
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20181012123742AAuAnHF