SOLUTION: Please help me figure out this problem... "14. Danny sold half of his comic books then bought 9 more. He now has 18 comic books. How many comic books did he begin with?"

Question 930179: Please help me figure out this problem... "14. Danny sold half of his comic books then bought 9 more. He now has 18 comic books. How many comic books did he begin with?"
Answer by TimothyLamb(4379) (Show Source): You can put this solution on YOUR website!
x = original number of comics
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x - x/2 + 9 = 18
(2/2)x - (1/2)x = 9
(1/2)x = 9
x = 9/(1/2)
x = 9*2
x = 18
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answer:
x = original number of comic books = 18
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