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12 March, 06:14

The sum of 2 times a number and - 7, added to 5 times the number

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Answers (2)
  1. 12 March, 09:39
    0
    Let x be the number

    2x - 7 + 5x

    =7x-7
  2. 12 March, 09:57
    0
    -2.33

    Step-by-step explanation: Added to means summed up to give

    Let the number be represented by a;

    2a + (-7) = 5a

    2a-7 = 5a

    2a = 5a+7

    2a-5a = 7

    -3a = 7

    a = 7/-3

    a = - 2.33
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