Solve $LaTeX: \displaystyle | 4 x + 2 |=58$

Splitting into two linear equations gives $LaTeX: \displaystyle 4 x + 2=-58$ and $LaTeX: \displaystyle 4 x + 2=58$ . Solving gives the two solutions $LaTeX: \displaystyle x=14$ and $LaTeX: \displaystyle x=-15$