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13 October, 06:57

Given that R=2x+9y Find x when y=3 and R=13.

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  1. 13 October, 07:59
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    R = 2x + 9y [ Given ]

    When,

    y = 3

    R = 13

    ★ Substituting the values in the above equation

    => 13 = 2x + 9 * 3

    => 13 = 2x + 27

    => 13 - 27 = 2x

    => - 14 = 2x

    => x = - 14/2

    => x = - 7
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