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Heidi paid $18 for 7 pairs of socks. she bought wool socks that cost $3 per pair and cotton socks that cost $2 per pair. how many pairs of socks did she buy?
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Heidi paid $18 for 7 pairs of socks. she bought wool socks that cost $3 per pair and cotton socks that cost $2 per pair. how many pairs of socks did she buy?

User Joe Thomas
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in the question it says she paid for 7 pairs of socks.

User Ironluca
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