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23 September, 04:48

What equations has the solution of x=3?

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  1. 23 September, 04:59
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    9x = 27; 3x + 4x - 7x = 0

    Step-by-step explanation:

    9x = 27

    9•3 = 27

    3x + 4x - 7x = 0

    3•3 + 4•3 - 7•3 = 0

    9 + 12 - 21 = 0

    21 - 21 = 0
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