Assuming both segments have the same lenght, we would have that
[tex]29=2x+5[/tex]Solving for x :
[tex]\begin{gathered} 29=2x+5 \\ \rightarrow29-5=2x \\ \rightarrow24=2x \\ \rightarrow\frac{24}{2}=x \\ \Rightarrow x=12 \end{gathered}[/tex]We get that x = 12