To determine the number of hours \( h \) that Moira still needs to read to finish the book, we can set up the equation based on the total hours needed and the hours she has already read.
The equation can be expressed as:
\[ h + 178 = 214 \]
Here, \( h \) represents the hours that Moira still needs to read.
To solve for \( h \), you would subtract the hours she has already read (178) from the total hours needed (214):
\[ h = 214 - 178 \]
So the completed equation would be:
\[ h + 178 = 214 \]