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28 January, 21:41

Given (x - 7) 2 = 36, whats the values of x

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  1. 29 January, 00:50
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    x = 25

    (x - 7) 2 = 36

    (x*2) - (7*2) = 36 : multiply x*2 and 7*2 because of distributive property

    2x - 14 = 36 : multiply

    2x = 36 + 14 : add 14 to combine like terms

    2x = 50 : add

    x = 50/2 : divide 50 by 2 to get x alone

    x = 25 : simplify
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