Bài 1:
a: x=6/6=1
b: =>x=-12x5:8=-60/8=-15/4
c: =>4/x=x/4
=>\(x\in\left\{4;-4\right\}\)
\(1,\\ a,x=\dfrac{2\cdot3}{6}=1\\ b,x=\dfrac{-12\cdot5}{8}=-7,5\left(ktm\right)\\ c,\Rightarrow2x^2=32\Rightarrow x^2=16\Rightarrow\left[{}\begin{matrix}x=4\\x=-4\end{matrix}\right.\\ 2,\\ a,\Rightarrow6x+6=6\Rightarrow x=0\\ b,\Rightarrow2-2x=4\Rightarrow2x=-2\Rightarrow x=-1\\ c,\Rightarrow-2x=18\Rightarrow x=-9\\ 3,\\ a,\Rightarrow36-4x=-60\Rightarrow4x=96\Rightarrow x=24\\ b,\Rightarrow\left(x+1\right)^2=9\Rightarrow\left[{}\begin{matrix}x+1=3\\x+1=-3\end{matrix}\right.\Rightarrow\left[{}\begin{matrix}x=2\\x=-4\end{matrix}\right.\\ c,\Rightarrow\left(x-1\right)^2=16\Rightarrow\left[{}\begin{matrix}x-1=4\\x-1=-4\end{matrix}\right.\Rightarrow\left[{}\begin{matrix}x=5\\x=-3\end{matrix}\right.\\ 4,\\ a,\Rightarrow4x=6x-3\Rightarrow2x=3\Rightarrow x=\dfrac{3}{2}\left(ktm\right)\\ b,\Rightarrow9x+3=8x-4\Rightarrow x=-7\\ 5,\\ a,\Rightarrow12x+4=7x+14\Rightarrow5x=10\Rightarrow x=2\\ b,\Rightarrow6x^2-6x=6x^2+6x\Rightarrow x=0\)
