Josh is hiking Glacier National Park. He has now hiked a total of $17 \text{ km}$ and is $2 \text{ km}$ short of being $\dfrac12$ of the way done with his hike.
**Write an equation to determine the total length in kilometers $(h)$ of Josh's hike.**
[[☃ expression 1]]
**Find the total length of Josh's hike. **
[[☃ input-number 1]] $\text{km}$