One side of a square is 5n inches long. Another side is n + 16 inches long. Write an equation by setting these equal and solving for n. How long is a side of the square? One point for finding n and one point for finding the length of the side.

Question

anonymous · Answer

All sides of a square are equal, therefore, 
5 n =n+16 
4n = 16 subtract n from both sides
n=4 divide both sides by 4, value of n
5*4 = 4+16 = 20 length of side