Question

51 is 4 times a number of books less 13

Answer 1

16 books

Explanation:

We need to translate this word equation to algebraic equation.

We want to find the number of books. Let it be "x".

Also, note "is" means "=".

51 is 4 times, would translate to:

51 = 4 *

a number of books LESS 13, would translate to:

x - 13

Combining, we get:

51 = 4*x - 13

We can now solve for x:

`51 = 4x - 13\\4x=51+13\\4x=64\\x=(64)/(4)\\x=16`

So, the number of books = 16