數學問題?!! help me

2008-03-29 5:34 am
數學問題:
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我只是要過程同答案-----thanks^^

1.2n+2 =1(4-n)
2.3p-2 =5(8+p)
3.6-(1+x)= 2
4.2x-6 = - 2( 9+x)
5.y-2(y-4)= - 7
--------------------請幫幫我...tanks!!

回答 (1)

2008-03-29 5:44 am
✔ 最佳答案
1. 2n+2=4-n
3n=2
n=2/3
2. 3p-2=40+5p
42=2p
p=21
3. 6-1-x=2
5-x=2
x=3
4. 2x-6=-18-2x
4x=-12
x=-3
5. y-2y+8=-7
-y=-15
y=15


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