Posted by **Nikki** on Wednesday, November 10, 2010 at 11:05pm.

Can someone please please help me understand how to go about solving this? (not really answering it, but actually explaining it-pretty please?)

"The zipper and the safety pin were invented in the 14th century. The safety pin was invented 44 years before the zipper. The sum of the years in which they were invented is 3742. In what year was the zipper invented?"

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