Question

A garden has four sides that are all the same length. Each side measures x+4 units. The garden's perimeter is 112 units. What is the value of x? Enter your answer in the box.

Answer 1

We know that
the garden's perimeter is 112 =[(x+4)+(x+4)+(x+4)+(x+4)]  

112=4*[x+4]------------ > 112/4=x+4
x=(112/4)-4=28-4=24 units

the answer is x=24 units