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2011-8-8 13:09
jackson1998
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Q1 x over 3+8=x+2
x�Y�}9?
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Q2 1 over 5x-1 over 6x=4
x�Y�}1 over 120?
========================================
Q3 5x-2 over 2=2x+3 over3
x=��?
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Q4 5+-x=4(x-3)-2(x-1)
x=��?
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2011-8-8 14:48
a0411047
Q1 x(9)<3+8(=11)=x(9)+2(=11)
x=9
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2011-8-8 15:44
jamzjam
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Q1 x/3 +8 = x+2
x+24 = 3x+6
18 = 2x
x = 9
Q2 1/5x - 1/6x = 4
6 -5 = 120x
1 = 120x
x = 1/120
Q3 (5x-2)/2 = (2x+3) /3
3(5x-2) = 2(2x+3)
15x-6 = 4x+6
11x = 12
x = 12/11
Q4 5+(-x)? = 4(x-3) - 2(x-1)
5-x = 4x-12 -(2x-2)
5-x = 4x-12-2x+2
5-x = 2x-10
15 = 3x
x = 5
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L1 : ax^2+bx+1 = 0 �ڤ��M = 8/7 �ڤ��n = 1/7
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[color=white]a = 7 , b = -8 , x = 1/7 or 1[/color] (Ctrl + A)
[[i] �����̫�� jamzjam �� 2011-8-8 16:07 �s�� [/i]]
2011-8-8 19:52
alanyip14532
�^�_ #1 jackson1998 �����l
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2011-8-8 21:10
louislee2815
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