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17 October, 13:57

6-3/4x+1/3=1/2x + what is this

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  1. 17 October, 14:13
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    x = 76/15

    Step-by-step explanation:

    Solve for x:

    - (3 x) / 4 + 1/3 + 6 = x/2

    Put each term in - (3 x) / 4 + 1/3 + 6 over the common denominator 12: - (3 x) / 4 + 1/3 + 6 = - (9 x) / 12 + 4/12 + 72/12:

    - (9 x) / 12 + 4/12 + 72/12 = x/2

    - (9 x) / 12 + 4/12 + 72/12 = (-9 x + 4 + 72) / 12:

    (-9 x + 4 + 72) / 12 = x/2

    Grouping like terms, - 9 x + 4 + 72 = (72 + 4) - 9 x:

    ((72 + 4) - 9 x) / 12 = x/2

    72 + 4 = 76:

    (76 - 9 x) / 12 = x/2

    Multiply both sides by 12:

    (12 (76 - 9 x)) / 12 = 6 x

    (12 (76 - 9 x)) / 12 = 12/12 * (76 - 9 x) = 76 - 9 x:

    76 - 9 x = (12 x) / 2

    12/2 = (2*6) / 2 = 6:

    76 - 9 x = 6 x

    Subtract 6 x from both sides:

    76 + (-9 x - 6 x) = 6 x - 6 x

    -9 x - 6 x = - 15 x:

    -15 x + 76 = 6 x - 6 x

    6 x - 6 x = 0:

    76 - 15 x = 0

    Subtract 76 from both sides:

    (76 - 76) - 15 x = - 76

    76 - 76 = 0:

    -15 x = - 76

    Divide both sides of - 15 x = - 76 by - 15:

    (-15 x) / (-15) = (-76) / (-15)

    (-15) / (-15) = 1:

    x = (-76) / (-15)

    Multiply numerator and denominator of (-76) / (-15) by - 1:

    Answer: x = 76/15
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