Question

Marge has 4 more than 2 times as many books as Susan. If Marge has 22 books and x is the number of books that Susan has, the relationship can be written as 4 + 2x = 22. How many books does Susan have?

Answer 1

Susan have 9 books.

Explanation:

Given that Marge has 4 more than 2 times as many books as Susan.

Let x represents the number of books that Susan has.

The relationship is written as

$4+2x=22$

To find: Number of books that Susan have.

The number of books that Susan have can be determined by solving the expression for x.

Thus, we have,

$4+2x=22$

Subtracting 4 from both sides of the equation, we get,

$2x=18$

Dividing both sides by 2, we get,

$x=9$

Therefore, Susan has 9 books.