Bài 1 :
a, \(x-8=3-2x-8\Leftrightarrow3x=3\Leftrightarrow x=1\)
b, \(\left[{}\begin{matrix}3x+1=0\\2x-3=0\end{matrix}\right.\Leftrightarrow\left[{}\begin{matrix}x=-\dfrac{1}{3}\\x=\dfrac{3}{2}\end{matrix}\right.\)
c, đk : x khác -2 ; 2
\(x^2+4x+4-6x+12=x^2\Leftrightarrow-2x+16=0\Leftrightarrow x=8\left(tm\right)\)
d, đk : x >= 1/2
\(\left[{}\begin{matrix}x+5=2x-1\\x+5=1-2x\end{matrix}\right.\Leftrightarrow\left[{}\begin{matrix}x=6\\x=-\dfrac{4}{3}\left(ktm\right)\end{matrix}\right.\)
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