you have already read 117 pages of a book. you are 1/3 of the way through the book. Write an equation to find the number of pages in the book.

Let \( x \) be the total number of pages in the book. According to the information provided, you have read 117 pages, which is \( \frac{1}{3} \) of the total pages in the book. We can express this relationship as the equation:

\[
\frac{1}{3}x = 117
\]

To find \( x \), we can multiply both sides of the equation by 3:

\[
x = 117 \times 3
\]

Now calculate \( x \):

\[
x = 351
\]

So, the total number of pages in the book is 351.