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16 November, 06:51

11/8a+5/4a=18 cuanto es?

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  1. 16 November, 07:27
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    The Answer is: 47 1/4

    Step-by-step explanation:

    11/8a + 5/4a = 18

    Create a common denominator for he coefficient of a:

    11/8a + 2/2 * 5/4a = 18

    11/8a + 10/8a = 18

    21/8a = 18

    Multiply both sides by the inverse of 21/8:

    8/21 * 21/8a = 18 * 21/8

    a = 378/8 or 189/4 or 47 1/4
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