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23 June, 17:15

Find x if y = 30.

2y + 102 = 2x2

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  1. 23 June, 17:39
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    2y + 102 = 2x^2

    2 (30) + 102 = 2x^2

    60 + 102 = 2x^2

    162 = 2x^2

    81 = x^2

    9 = x

    x = 9
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