a: \(\Leftrightarrow\left\{{}\begin{matrix}3x-2>-4\\3x-2< 4\end{matrix}\right.\Leftrightarrow-\dfrac{2}{3}< x< 2\)

c: \(\Leftrightarrow\left[{}\begin{matrix}3x-1>5\\3x-1< -5\end{matrix}\right.\Leftrightarrow\left[{}\begin{matrix}x>2\\x< -\dfrac{4}{3}\end{matrix}\right.\)

d: \(\Leftrightarrow\left[{}\begin{matrix}3x+1>x-2\\3x+1< -x+2\end{matrix}\right.\Leftrightarrow\left[{}\begin{matrix}2x>-3\\4x< 1\end{matrix}\right.\Leftrightarrow\left[{}\begin{matrix}x>-\dfrac{3}{2}\\x< \dfrac{1}{4}\end{matrix}\right.\)

a) |x + 2| - x = 2

=> |x + 2| = x + 2

=> x + 2 >= 0

=> x >= -2

b) |x - 3| + x - 3 = 0

=> |x - 3| = 3 - x

=> x - 3 <= 0

=> x <= 3

CÂU A) số nguyên bất kì

x\(\in\) {1;2;3;44}

\(\left|3x-1\right|=\left|\dfrac{-1}{3}x+2\right|\)

<=> \(\left[{}\begin{matrix}3x-1=\dfrac{-1}{3}x+2\\-3x+1=\dfrac{-1}{3}x+2\end{matrix}\right.\)

<=> \(\left[{}\begin{matrix}3x-\dfrac{-1}{3}x=2+1\\-3x-\dfrac{-1}{3}x=2-1\end{matrix}\right.\)

<=> \(\left[{}\begin{matrix}\dfrac{10}{3}x=3\\\dfrac{-8}{3}x=1\end{matrix}\right.\)

<=> \(\left[{}\begin{matrix}x=\dfrac{9}{10}\\x=\dfrac{-3}{8}\end{matrix}\right.\)

\(\Leftrightarrow\left[{}\begin{matrix}3x-1=-\dfrac{1}{3}x+2\left(x\ge\dfrac{1}{3}\right)\\3x-1=\dfrac{1}{3}x-2\left(x< \dfrac{1}{3}\right)\end{matrix}\right.\)

\(\Leftrightarrow\left[{}\begin{matrix}\dfrac{10}{3}x=3\\\dfrac{8}{3}x=-1\end{matrix}\right.\)\(\Leftrightarrow\left[{}\begin{matrix}x=\dfrac{9}{10}\left(tm\right)\\x=-\dfrac{3}{8}\left(tm\right)\end{matrix}\right.\)

a) 0

b) 3

c) -0,5

a là 0 

b là 3

c là -0,5

a)0

b)3

c)-0,5

tick mjnh nhé

a) x=0

b) x=3

c) x= -2

tick mình đi

a) -2

b) \(\frac{-11}{3}\)

c) -0,5