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22 April, 17:00

Using the numbers 1, 2, 3, and 4 (ONLY ONCE), and the operations of adding, subtracting, multiplying, dividing, and the use of parenthesis, write an expression that evaluates to 21.

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  1. 22 April, 17:18
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    Step-by-step explanation:

    = (4+3) * (2+1)

    =7*3

    =21
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