1:
=>\(8x-3-6x+4=4x-2+x+3\)
=>5x+1=2x+1
=>x=0
2: \(\Leftrightarrow4x+12=-7x+17\)
=>11x=5
=>x=5/11
3: =>\(5x-15-4=2x-2+7\)
=>5x-19=2x+5
=>3x=24
=>x=8
4: \(\Leftrightarrow\left[{}\begin{matrix}5x-4=0\\4x+6=0\end{matrix}\right.\Leftrightarrow x\in\left\{\dfrac{4}{5};-\dfrac{3}{2}\right\}\)
6: =>(2x-8)(2x+6)=0
=>x=4 hoặc x=-3