how to do this maths
回答 (3)
2011-11-09 4:01 am
✔ 最佳答案
5(3x+1)/2-11=2(x+1/3)15x/2 + 5/2 - 11 = 2x + 2/3
15x/2 - 4x/2 = 2/3 - 5/2 + 11
11x/2 = 4/6 - 15/6 + 66/6
11x/2 = 55/6
x/2 = 5/6
x = 5/3
參考: Hope the solution can help you^^”
2011-11-09 6:59 am
equation×6
15(3x+1)-66=12(x+1/3)
45x+15-66=12x+4
33x=55
x=55/33
15(3x+1)-66=12(x+1/3)
45x+15-66=12x+4
33x=55
x=55/33
2011-11-09 4:09 am
5(3x+1)/2-11=2(x+1/3)
(15x+5)/2-11=2x+2/3
(15x+5)/2=2x+11又2/3
15x+5=2(2x+11又2/3)
15x+5=2(2x+35/3)
15x+5==4x+70/3
15x+4x=70/3-5
19x=23又1/3-5
19x=18又1/3
19x=37/3
x=37x１9/3
x=234又1/3
(15x+5)/2-11=2x+2/3
(15x+5)/2=2x+11又2/3
15x+5=2(2x+11又2/3)
15x+5=2(2x+35/3)
15x+5==4x+70/3
15x+4x=70/3-5
19x=23又1/3-5
19x=18又1/3
19x=37/3
x=37x１9/3
x=234又1/3
收錄日期: 2021-04-16 13:43:57
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20111108000051KK00651