PLS HELP, 數學代數方程 !!!
回答 (2)
2013-10-21 8:57 pm
✔ 最佳答案
設A分得$XB 分得即是2X-200
X+2X-200=1000
3X =1200
X=$400
B分得=1000-400=$600 OR 2*400-200 =600
2013-10-22 5:38 am
{ A + B = 1000
{ 2A - B = 200
{ B = 1000 - A --------(1)
{ 2A - B = 200 ---------(2)
由 (1) 代入至 (2)
2A - (1000 - A) = 200
2A - 1000 + A = 200
3A = 1200
A = 400
由於 A = 400, 所以 B = 1000 - 400
= 600
A = 400, B = 600
{ 2A - B = 200
{ B = 1000 - A --------(1)
{ 2A - B = 200 ---------(2)
由 (1) 代入至 (2)
2A - (1000 - A) = 200
2A - 1000 + A = 200
3A = 1200
A = 400
由於 A = 400, 所以 B = 1000 - 400
= 600
A = 400, B = 600
參考: ME
收錄日期: 2021-04-13 19:46:22
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20131021000051KK00085