★+★+◆=32
◆+◆+◆+★+★=48
★+◆= ?
Maths
2007-05-02 1:10 am
回答 (3)
2007-05-02 3:01 am
2x+y=32
3y+2x=48
將兩條式相減，得﹕
2y=16
y=8
2x=32-8
x=24over2
x=12
x+y=20
3y+2x=48
將兩條式相減，得﹕
2y=16
y=8
2x=32-8
x=24over2
x=12
x+y=20
2007-05-02 1:14 am
◆+◆+ 32=48
◆+◆ = 16, ◆ =8
★= 12
★+◆ = 12 + 8 = 20
◆+◆ = 16, ◆ =8
★= 12
★+◆ = 12 + 8 = 20
收錄日期: 2021-04-13 00:30:12
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20070501000051KK03433