### Home > ACC7 > Chapter cc27 > Lesson cc27.2.2 > Problem 7-115

7-115.

For each equation below, solve for

*x*. Sometimes the easiest strategy is to use mental math. Homework Help ✎*x*−= 1 5.2 +

*x*= 10.952

*x*− 3.25 = 7.15=

*x* = 5.75

*x* = 5.2

Be sure to know how to get this answer using mental math. Recognize that 3.25 + 7.15 equals an even decimal, 10.4.

8(2) = 16

What must *x* be?