3. 5(f-0.4)=2.2-9(0.2f+1.6)
更新1:
1. 5-(3n-2)/8+(n+2)/4=(1-2n)/3 2. (L-2)/7-6=2/3L
maths 2
2010-12-26 6:41 am
1. 5-(3n-2)/8+(n+2)/4=(1-2n)/3 2. (L-2)/7-6=2/3L
3. 5(f-0.4)=2.2-9(0.2f+1.6)
3. 5(f-0.4)=2.2-9(0.2f+1.6)
回答 (1)
2010-12-26 8:08 am
✔ 最佳答案
1. 5-(3n-2)/8+(n+2)/4=(1-2n)/3 23/4-n/8 = 1/3 - 2n/3
n = -10
2. (L-2)/7-6=2L/3
L/7 - 44/7 = 2L/3
L = -12
3. 5(f-0.4)=2.2-9(0.2f+1.6)
5f - 2 = -1.8f - 12.2
f = -1.5
收錄日期: 2021-04-19 23:46:29
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20101225000051KK01182