Ahmed has half of a treasure mapwhich indicates that thetreasure is buried in the desert 2x + 6 paces from Castle Rock.Vanessa has the other half of the map. Her half indicates that tofind the treasure one must get to Castle Rock walk x paces to thenorth and then walk 2x + 4 paces to the east. If they share theirinformation then they can find x and save a lot of digging. Whatis x