### Home > CCA > Chapter 2 > Lesson 2.4.1 > Problem 2-97

2-97.

Rena says that if *x* = −5, the equation below is true. Her friend, Dean, says the answer is *x* = 3. Who is correct? Justify your conclusion. Homework Help ✎

9(*x* + 4) = 1 + 2*x*

Substitute both numbers in for *x* and see which one makes the statement true.

For example, if Joe said *x* = 2:

9(2 + 4) = 1 + 2(2)

18 + 36 = 1 + 4

54 = 5

False!

Now try with the given possible values.