Plz subscribe to my you. tube channel its Kallen Buzzard

Me write an equation for the interior angles of this triangle that uses the triangle sum theorem

Does anyone know how to solve and graph this: 4 + | a + 2 | < 7the only part i don't get is the "4 +"

George is putting trim around his rectangular deck, including the gate. he will need 44 feet of trim to do the entire deck. if the deck is 13 feet long, how wide is the deck?