x 2 – 1 2 (12 – x) = 7x + 3(8 – x) – 8

Question

x 2 – 1 2 (12 – x) = 7x + 3(8 – x) – 8

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    0
    2021-10-04T13:07:06+00:00

    x=18 hope this helps

    0
    2021-10-04T13:07:30+00:00

      x = -22/3 = -7.333


    Step by step solution : Step  1  :Equation at the end of step  1  : x 1
    (—-(—•(12-x)))-((7x+3•(8-x))-8) = 0
    2 2
    Step  2  : 1
    Simplify —
    2
    Equation at the end of step  2  : x 1
    (— – (— • (12 – x))) – (4x + 16) = 0
    2 2
    Step  3  :Equation at the end of step  3  : x (12 – x)
    (— – ————————) – (4x + 16) = 0
    2 2
    Step  4  : x
    Simplify —
    2
    Equation at the end of step  4  : x (12 – x)
    (— – ————————) – (4x + 16) = 0
    2 2
    Step  5  :Adding fractions which have a common denominator :

     5.1       Adding fractions which have a common denominator
    Combine
    the numerators together, put the sum or difference over the common
    denominator then reduce to lowest terms if possible:

    x – ((12-x)) 2x – 12
    ———————————— = ———————
    2 2
    Equation at the end of step  5  : (2x – 12)
    ————————— – (4x + 16) = 0
    2

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