Respuesta :

The answer origanlly would of been 65
(x+5)+(x+5)+(x+5)=60
3x+15=60
3x=45
x=15.
before 5 was added to each side, each side was 10 in, and now each side is 15 in.
because x is the original side lengths and we added 5 to each side.
combine like terms and solve for x.