\(a.\left|x-7\right|=25.\Leftrightarrow\left[{}\begin{matrix}x-7=-25.\\x-7=25.\end{matrix}\right.\Leftrightarrow\left[{}\begin{matrix}x=-18.\\x=32.\end{matrix}\right.\)
\(b.\left|2,3-x\right|=3,2.\Leftrightarrow\left[{}\begin{matrix}2,3-x=3,2.\\2,3-x=-3,2.\end{matrix}\right.\Leftrightarrow\left[{}\begin{matrix}x=-0,9.\\x=5,5.\end{matrix}\right.\)
\(c.0,5.\left|x-2\right|=1,5.\Leftrightarrow\left|x-2\right|=3.\Leftrightarrow\left[{}\begin{matrix}x-2=3.\\x-2=-3.\end{matrix}\right.\Leftrightarrow\left[{}\begin{matrix}x=5.\\x=-1.\end{matrix}\right.\)
\(d.\left|x+\dfrac{2}{3}\right|-3=\dfrac{1}{2}.\Leftrightarrow\left|x+\dfrac{2}{3}\right|=\dfrac{7}{2}.\Leftrightarrow\left[{}\begin{matrix}x+\dfrac{2}{3}=\dfrac{-7}{2}.\\x+\dfrac{2}{3}=\dfrac{7}{2}.\end{matrix}\right.\Leftrightarrow\left[{}\begin{matrix}x=\dfrac{-25}{6}.\\x=\dfrac{17}{6}.\end{matrix}\right.\)
\(e.\dfrac{-3}{x}=\dfrac{15}{10}.\Leftrightarrow\dfrac{-3}{x}=\dfrac{3}{2}.\Leftrightarrow x=-2.\)
\(f.\dfrac{5}{6}=\dfrac{-2,5}{x}.\Leftrightarrow\dfrac{2,5}{3}=\dfrac{-2,5}{x}.\Leftrightarrow x=-3.\)
\(g.3^{2x}.9^{2x}=3^{18}.\Leftrightarrow\left(3.9\right)^{2x}=3^{18}.\Leftrightarrow27^{2x}=27^6.\Rightarrow2x=6.\Leftrightarrow x=3.\)
\(h.2^{2x+1}=32.\Leftrightarrow2^{2x+1}=2^5.\Rightarrow2x+1=5.\Leftrightarrow2x=4.\Leftrightarrow x=2.\)
