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March 28, 2017

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3(5y-5x)=45

  • algebra 1 - ,

    3 ( 5 y - 5 x ) = 45

    3 * 5 * ( y - x ) = 3 * 3 * 5

    15 ( y - x ) = 3 * 15 Divide both sides by 15

    y - x = 3 Add x to both sides

    y - x + x = 3 + x

    y = x + 3

    If you must solve y = 0

    0 = x + 3 Subtrac 3 to both sides

    0 - 3 = x + 3 - 3

    - 3 = x

    x = - 3

    OR

    3 ( 5 y - 5 x ) = 45 Divide both sides by 3

    5 y - 5 x = 45 / 3 = 15

    5 * 0 - 5 x = 15

    - 5 x = 15 Divide both sides by - 5

    x = 15 / - 5

    x = - 3

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