\(a,\Rightarrow\left[{}\begin{matrix}x-1=1\\1-x=1\end{matrix}\right.\Rightarrow\left[{}\begin{matrix}x=2\\x=0\end{matrix}\right.\\ b,\Rightarrow7^{2x-6}=7^2\Rightarrow2x-6=2\Rightarrow x=4\\ c,\Rightarrow\left(2x-6\right)^7=2^7\Rightarrow2x-6=2\Rightarrow x=4\\ d,\Rightarrow13\cdot x=195\Rightarrow x=15\\ e,\Rightarrow\left(135-7x\right):9=8\Rightarrow135-7x=72\Rightarrow7x=63\Rightarrow x=9\\ f,\Rightarrow338-113+x=158\Rightarrow225+x=158\Rightarrow x=-67\\ g,\Rightarrow3\left(x+2\right):7=30\Rightarrow3\left(x+2\right)=210\Rightarrow x+2=70\Rightarrow x=68\\ h,\Rightarrow\left[{}\begin{matrix}x=0\\x-1=0\end{matrix}\right.\Rightarrow\left[{}\begin{matrix}x=0\\x=1\end{matrix}\right.\\ i,\Rightarrow\left[{}\begin{matrix}x+2=0\\x-4=0\end{matrix}\right.\Rightarrow\left[{}\begin{matrix}x=-2\\x=4\end{matrix}\right.\\ k,\Rightarrow\left(x-140\right):7=27-24=3\\ \Rightarrow x-140=21\Rightarrow x=161\\ l,\Rightarrow x^5=2^5\Rightarrow x=2\\ m,\Rightarrow3^{x-3}=2\cdot3^2+3^2=3^3\Rightarrow x-3=3\Rightarrow x=6\)
b: =>2x-6=2
hay x=4
c: =>2x-16=2
hay x=9
