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17 August, 09:30

A while back, either James borrowed $12 from his friend Rita or she borrowed $12 from him, but he can't quite remember which either way he is planning to pay her backs or ask that she pay him back this afternoon of he has $42.80 in his, wallet which equation represents the amount of money he may have after he sees Rita?

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Answers (2)
  1. 17 August, 09:38
    0
    Step-by-step explanation:

    He has 42.80

    Call x the amount that he will have

    If he pays 12 to Rita, x = 42.80 - 12

    If he receives 12 from Rita, x = 42.80 + 12

    From the first equality

    x - 42.8 = - 12

    From the second equality

    x - 42.8 = + 12

    Then |x - 42.80| = 12
  2. 17 August, 11:28
    0
    x=42.80±12

    Step-by-step explanation:

    He knows he is either getting or losing $12
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