Seudónimo Seudónimo

02-02-2016
Mathematics

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tom sold half of his comic books and then bought six more. he now has 12. how many did he begin with?

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jessicaa57 jessicaa57

02-02-2016

b=books
Sold half of book: b/2
Bought six more: b/2+
Now has 12: b/2+6=12
Subtract 6 on both sides: b/2+6-6=12-6
b/2=6
Multiply both sides by 2: b=12
Answer= 12 books

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