### Home > CC4 > Chapter 3 > Lesson 3.3.1 > Problem 3-115

3-115.

Examine the rectangle at right. If the perimeter is 120, which equation below represents this fact? Once you have selected the appropriate equation, solve for *x*. Homework Help ✎

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The equation for the perimeter is *c*.

2(6*x* − 1) + 2(2*x* + 5) = 120

(12*x* − 2) + (4*x* + 10) = 120

16*x* + 8 = 120

16*x* = 112

*x* = 7