A book has 49 chapters. The second chapter is 32 pages long. If there are a total of 35 pages in the book How many pages are in the first chapter?
There are 49 chapters in the book. 
The second chapter is 32 pages long. 
There are a total of 35 pages in the book. 

We want to know how many pages are in the first chapter. 

We can set up an equation to solve this problem: 

49x + 32 = 35

We want to solve for x, so we'll subtract 32 from both sides: 

49x = 3

And then we'll divide both sides by 49: 

x = 3/49

The first chapter is 3 pages long.