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18 October, 11:43

B = 3/4 a a + b = 21

Solve.

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Answers (2)
  1. 18 October, 11:47
    0
    3/4 + a = 21

    Change 21 into a fraction 84/4

    84/4 - 3/4 = 81/4
  2. 18 October, 11:53
    0
    Answer: 21 3/4

    Step-by-step explanation:

    a+b = > 3/4+21=21 3/4
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