Question

The sum of a number and 9 is seven less than the product of the number and 4. What is the number?

Answer 1

10

Explanation:

let n represent the number

sum means to add

product means multiply

n + 9 < n • 4

if you fill in 10 for your variable n you will get:

19 < 40

10 plus 9 is 19

10 by 4 is 40

and

because 19 is less than 40 that statement is true