giải các phương trình sau và biểu diễn tập nghiệm trên trục số :
a)$2(3x-1)- 2x < 2x + 1$
b)$ 4x -8 > 3(3x-2 )+4 -2x$

sao ạ^^^^^^^ –  Yêu Tatoo 06-02-16 06:48 PM
anh ak ..hihih –  ๖ۣۜJinღ๖ۣۜKaido 06-02-16 06:41 PM
cái tiêu đề của mk ai đổi vậy –  Yêu Tatoo 06-02-16 06:15 PM
hì em nhân tung ra rùi chuyển hết về một vế nhek –  ๖ۣۜJinღ๖ۣۜKaido 05-02-16 09:55 PM
a cứ lm theo ý hiểu –  Yêu Tatoo 05-02-16 09:54 PM
ui giải thì dc rùi em nhưng biểu diễn anh chịu –  ๖ۣۜJinღ๖ۣۜKaido 05-02-16 09:53 PM
a,$4x-8>7x-2$
$\Leftrightarrow 3(x-2)>0\Rightarrow x<-2$
$b,4x-2>2x+1\Leftrightarrow 2x-3>0\Rightarrow x<\frac{3}{2}$

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