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6 May, 10:35

Kate sold 12 of her paintings and purchased 7 more. if kate has 21 paintings now, how many paintings did she have to begin with?

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  1. 6 May, 12:46
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    First, let x or any variable represent the number of paintings Kate initially has. After selling 12 of it, her paintings now becomes only x - 12. Then, she purchased 7 more making the number of her paintings become x - 12 + 7 = x - 5. This number tantamount to 21.

    x - 5 = 21; x = 26

    Thus, Kate initially had 26 paintings.
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