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7 October, 15:28

Ayuda porfa

3x + 20 = 8x+60

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Answers (2)
  1. 7 October, 17:52
    0
    3x + 20 = 8x + 60

    -5x + 20 = 60

    -5x = 40

    x = - 8
  2. 7 October, 18:45
    0
    3x + 20 = 8x+60

    Move 8x to the other side

    Sign changes from + 8x to - 8x

    3x-8x+20 = 8x-8x+60

    3x-8x+20 = 60

    -5x+20 = 60

    Move 20 to the other side

    Sign changes from + 20 to - 20

    -5x+20-20 = 60-20

    -5x = 60-20

    -5x = 40

    Divide by - 5 for both sides

    -5x/-5 = 40/-5

    Answer: x = - 8
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