3y-30-6x3=12
回答 (12)
2006-10-25 6:10 am
✔ 最佳答案
3y - 30 - 6 * 3 = 123y -30 - 18 = 12
3y = 60
y = 20
2006-10-25 9:00 am
3y - 30 - 6x3 = 12
3y - 30 - 18 = 12
3y - 30 - 18 + 18 = 12 + 18
3y - 30 + 30 = 30 + 30
3y = 60
y = 20
3y - 30 - 18 = 12
3y - 30 - 18 + 18 = 12 + 18
3y - 30 + 30 = 30 + 30
3y = 60
y = 20
2006-10-25 9:00 am
3y-30-18=12
3y=36
y=12
2006-10-25 01:03:56 補充：
寫錯3y-48=123y=60y=20
3y=36
y=12
2006-10-25 01:03:56 補充：
寫錯3y-48=123y=60y=20
2006-10-25 7:15 am
3y-30-6x3=12
3y - 30 - 18 = 12
3y - 48 = 12
3y = 12 + 48
3y = 60
y = 20
3y - 30 - 18 = 12
3y - 48 = 12
3y = 12 + 48
3y = 60
y = 20
2006-10-25 6:19 am
3y-30-6x3=12
3y-30-18=12
3y=60
y=20
3y-30-18=12
3y=60
y=20
2006-10-25 6:17 am
3y=12/3+6+30
3y=40/3
y=13.33333333
3y=40/3
y=13.33333333
2006-10-25 6:15 am
3y-30-18=12
3y-30-18+30+18=12+18+30
3y=60
3y/3=60/3
y=20
3y-30-18+30+18=12+18+30
3y=60
3y/3=60/3
y=20
2006-10-25 6:12 am
3y-30-6x3=12
3y-30-18=12
3y-48=12
3y=12+48
3y=60
y=20
3y-30-18=12
3y-48=12
3y=12+48
3y=60
y=20
收錄日期: 2021-04-12 22:51:03
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https://hk.answers.yahoo.com/question/index?qid=20061024000051KK04540