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14 October, 00:31

What is the value of m in the following equation? (If your answer is an integer, type it like this example: 25. If your answer is a fraction, type it like this example: 2/5.)

m + 15 = 3m - 9

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Answers (2)
  1. 14 October, 01:23
    0
    move the first m to the right-> 15=3m-m-9

    15=2m-9

    add 9 to both sides-> 15+9=2m-9+9

    24=2m+0

    now divide 24/2

    m=12
  2. 14 October, 04:08
    0
    Take away m from both sides to get 15=2m-9 and add 9 to get 24=2m, next divide by 2 to get m=12
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