A triangle has side lengths of 5a +3 inches and 2a +3 inches. If the perimeter of the triangle is 3a + 12 inches, which expression represents the length, in
inches, of the third side of the triangle?

A triangle has side lengths of 5a 3 inches and 2a 3 inches If the perimeter of the triangle is 3a 12 inches which expression represents the length in inches of class=