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Bill sold half of his comic books. He then bought 16 more if now he has 36, how many did he start with?
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Bill sold half of his comic books. He then bought 16 more if now he has 36, how many did he start with?

User D J
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1/2x + 16 = 36
1/2x = 36 - 16
1/2x = 20
x = 20 * 2
x = 40 <== he started with 40
User Andorov
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