### Home > CC4 > Chapter 3 > Lesson 3.1.6 > Problem 3-68

3-68.

The length of a side of a square is 5*x* + 2 units. Assuming the perimeter is 48 units, complete the following problems. Homework Help ✎

Write an equation to represent this information.

To find the perimeter, add the side lengths. In this case we have a square which has four equal side lengths.

One possibility is 4(5

*x*+ 2) = 48.Solve for

*x*.*x*= 2What is the area of the square?

Remember to substitute

*x*= 2 back into the original equation.