contestada

Henry has twice as many fiction.
books as non-fiction books. He has
17 more fiction books than non-fiction
books. How many books does Henry
have in all?​

Respuesta :

Let [tex]x[/tex] be the number of non-fiction books. We deduce that the number of fiction books is [tex]2x[/tex], since they are twice as much.

Since the difference between the two numbers is 17, we have

[tex]2x-x=17\iff x=17[/tex]

So, Henry has 17 non-fictional and 34 fictional books, for a total of 51 books.

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