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16 May, 06:34

What is the solution set for 8x-9=11x+12

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Answers (2)
  1. 16 May, 07:17
    0
    8x-9=11x+12

    8x-11x-9=12

    -3x-9=12

    -3x=12+9

    -3x=21

    x=21/-3

    x=-7
  2. 16 May, 09:10
    0
    8x - 9 = 11x + 12

    -8x - 8x

    -9 = 3x + 12

    -12 - 12

    -21 = 3x

    3 3

    -7 = x
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