Question

Tìm x

/x-3/ -2 =4

2-/2x+1/=-3

3/x+1/-2x= 3

3x-2./x-2/=7

Answer 1

a, \(\left|x-3\right|-2=4\)

\(\Rightarrow\left|x-3\right|=6\)

\(\Rightarrow\left\{{}\begin{matrix}x-3=-6\\x-3=6\end{matrix}\right.\Rightarrow\left\{{}\begin{matrix}x=-3\\x=9\end{matrix}\right.\)

Vậy....

b, \(2-\left|2x+1\right|=-3\)

\(\Rightarrow\left|2x+1\right|=5\)

\(\Rightarrow\left\{{}\begin{matrix}2x+1=-5\\2x+1=5\end{matrix}\right.\Rightarrow\left\{{}\begin{matrix}2x=-6\\2x=4\end{matrix}\right.\)

\(\Rightarrow\left\{{}\begin{matrix}x=-3\\x=2\end{matrix}\right.\)

Vậy......

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