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March 28, 2017

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1/9+x=5/6x-3/4

  • pre-algebra - ,

    9 * 4 * 3 = 108


    1 / 9 = 12 / 108

    5 / 6 = 90 / 108

    3 / 4 = 81 / 108



    1 / 9 + x = ( 5 / 6 ) x - 3 / 4

    12 / 108 + x - ( 5 / 6 ) x = - 81 / 108

    6x / 6 - ( 5 / 6 ) x = - 81 / 108 - 12 / 108

    ( 1 / 6 ) x = - 93 / 108 Multiply both sides with 6

    x = 6 * ( - 93 ) / 108

    x = 6 * ( - 93 ) / ( 6 * 18 )


    x = - 93 / 18

  • pre-algebra - ,

    multiply each term by 108 , the LCD found also by anonymous

    12 + 108x = 90x - 81
    18x = -93
    x = -93/18
    x = -31/6

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