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8 August, 23:08

The sum of twice a number and 7

is equal to the sum of the number and 3

+3
Answers (1)
  1. 9 August, 02:33
    0
    2n+7 = n+3

    n=-4

    Step-by-step explanation:

    the sum of twice a number and 7 is equal to the sum of the number and 3

    2n+7 = n+3

    subtract n from each side

    n+7 = 3

    subtract 7 from each side

    n = 3-7

    n = - 4
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