SOLUTION: Don bought 2 puzzle books. together they cost $19. one cost $5 more than the other one. how much did each book cost

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Question 377469: Don bought 2 puzzle books. together they cost $19. one cost $5 more than the other one. how much did each book cost
Answer by robertb(5830) About Me  (Show Source):
You can put this solution on YOUR website!
x = cost of one book, y = cost of another book. Then x = y + 5, and x+y = 19. Then y+5 + y = 19, or 2y + 5 = 19, or 2y = 14, or y = $7, the cost of the other book. The first book costs x = $12.