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11 May, 20:17

3 1/2x + 215 = 495 Multiply both sides of simplified equation to get X alone on the left side of the equation. Simplify.

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  1. 11 May, 21:45
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    Step-by-step explanation:

    The equation is not well presented but I assume the equation is

    3½x + 215 = 495

    Converting the mixed fraction to improper fraction

    Then, we have

    7x/2 + 215 = 495

    To eliminate the fraction aspect we will multiply both the right hand side and the left hand side by 2

    2 (7x/2 + 215) = 2*495

    Open bracket

    7x + 430 = 990

    Subtract 430 from both sides of equation

    7x + 430-430 = 990-430

    7x = 560

    Divide both sides by 7

    7x/7 = 560/7

    x = 80

    The value of the unknown x is 80
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