82.50?? I think because I just multiplied them.
(7x) + 3 = 8
subtract both sides by 3.
7x = 5
divide both sides by 7 to isolate the variable, x.
x = 5/7
X=2 . HOPE THIS HELPED !!!!
The answer is c. Because all you need to know is to find the other leg and find the perimeter of the whole thing.
