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


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

  1. Can you use mental math to solve this equation?

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

  1. What must be?