1. x - 6 = x - 3 徐4
2. 2y + 1 徐5 = 3 - y
2題f.1既方程式
2008-10-11 5:18 am
回答 (2)
2008-10-12 6:12 am
✔ 最佳答案
Q1) x-6=x-3/44(X-6) =X-3
4x-24 =x-3
4x-x = 24-3
3x = 21
x = 7
Q2) 2y+1/5=3-y
2y+1 =5(3-y)
2y+1 =15-5y
2y+5y =15-1
7y =14
y = 2
參考: 自己做
2008-10-11 5:27 am
Q.1
No problem, please re-check the question.
Q.2
2y + 1/5 = 3 - y
2y + y = 3 - 1/5
3y = 15/5 - 1/5
3y = 14/5
y = 14/15
No problem, please re-check the question.
Q.2
2y + 1/5 = 3 - y
2y + y = 3 - 1/5
3y = 15/5 - 1/5
3y = 14/5
y = 14/15
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