### Home > CC4 > Chapter 3 > Lesson 3.1.4 > Problem 3-47

3-47.

*x* to calculate the length of each side of the triangle. Be sure to confirm that your answer is correct. Homework Help ✎

Find the sum of the side lengths.

The sum of the side lengths is the perimeter, which we know from the problem is 52 units.Set expression from Step 1 equal to 52 and solve for *x*.

(7*x* − 4) + (19) + (10*x* + 3)

(7*x* − 4) + (19) + (10*x* + 3) = 52

17*x* + 18 = 52

Continue solving finding the value of *x*.

Find side lengths substituting your found value of *x* into the expression given for each side.