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2 August, 04:00

Does anyone know how to solve 81 increased to 90?

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  1. 2 August, 04:41
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    89+90=171. keep in mind that increased or increased by means to add
  2. 2 August, 05:08
    0
    That seems an odd way of wording the question. Do you mean 81+x=90? In other words, what number can you add to 81 to get 90. You can also switch it around so 90-81=x.

    81+x=90

    x=90-81

    x=9
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