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13 December, 14:49

What is the solution of 2.5a + 12 = 5a?

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Answers (2)
  1. 13 December, 15:13
    0
    a=4.8

    Step-by-step explanation:

    5a-2.5a=12

    2.5a=12

    a=12:2.5

    a=4.8
  2. 13 December, 15:13
    0
    =4.7

    Step-by-step explanation:

    (2.5) a+12=59

    (2*5) a+12=59

    10a+12=59-12 (take 12 to the other side the sign changes)

    10a=47

    divide ... 47:10

    a=4.7
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