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12 November, 08:24

SDAY:

ve the equation:

5x - 2 (x + 7) = - 5

+4
Answers (1)
  1. 12 November, 08:47
    0
    5x - 2 (x + 7) = - 5

    mutiply the bracket by - 2

    (-2) (x) = - 2x

    (-2) (7) = - 14

    5x-2x-14=-5

    3x-14 = - 5

    move - 14 to the other side, sign changes from - 14 to + 14

    3x-14+14 = - 5+14

    3x = 9

    divide by 3 for both sides

    3x/3 = 9/3

    x = 3

    Answer: x = 3
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