`a) |x-3,5|=7`
⇒ \(\left[ \begin{array}{l}x-3,5=7\\x-3,5=-7\end{array} \right.\)
⇒ \(\left[ \begin{array}{l}x=10,5\\x=-4,5\end{array} \right.\)
`b) (x+1,5)^3=27`
`⇒ (x+1,5)=±3`
⇒ \(\left[ \begin{array}{l}x+1,5=3\\x+1,5=-3\end{array} \right.\)
⇒ \(\left[ \begin{array}{l}x=1,5\\x=-4,5\end{array} \right.\)