a garden has six sides that are all the same length each side measures x + 12 units the gardens perimeter is 216 units what is the value of x

24 units

Step-by-step explanation:

add (x+12) to itself 6 times and get 6x+72 after combining like terms, or multiply 6 (x+12) and distribute to get the same thing 6x+72 and equal it to the perimeter.

6x+72 = 216 solve for x

6x = 144 divide

x = 24 units