### Home > MC2 > Chapter 5 > Lesson 5.3.4 > Problem 5-126

5-126.

Using the 5-D Process, Define, Do, and then Decide for the expression, then Declare your answer.

Quintrell's Number *x*

35 + *x* = 4*x* + 8

What is Quintrell's number?

Declare: Quintrell's number is 9. Be sure to know why.