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5 December, 09:24

A student's solution to the equation 3x 2=15 is x=3. describe and correct the error that the student made

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  1. 5 December, 12:28
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    The answer is wrong because it's meant to be ...

    3x x 2 = 15 so do the reverse!

    15/3 = 5/2 = 2.5

    Double check by putting it in the formulae

    3 (2.5) x 2 = 15
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