### Home > CC3 > Chapter 8 > Lesson 8.2.3 > Problem 8-92

8-92.

For each equation below, solve for *x*. Sometimes the easiest strategy is to use mental math. Homework Help ✎

Can you use mental math to solve this equation?

Be sure to know how to get this answer using mental math. Recognize thatequals an even decimal, .

What mustbe?