Question

Jennifer bought x books. Chelsea bought 3 times more books than Jennifer and plans to give 4 of the books to her teacher. Write an expression to show how many books Chelsea will keep. ​

Answer 1

Jennifer bought x books, so let b represent books.

Chelsea bought 3 times more books than Jennifer, so we write b x 3.

She gave 4 books to her teacher, so we write - 4.

The final answer is b x 3 - 4. Hope this helps!

Answer 2

Answer: 3x-4

Explanation:

If jennifer is x, and Chelsea bought 3 times more than her

then she bought 3x

but since shes giving 4 away to her teacher you subtract 4 from 3x

so the answer is 3x-4