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27 October, 22:52

Whats the answer to 4 (2r+8) = 88

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  1. 28 October, 01:56
    0
    4 (2r+8) = 88

    8r+32=88

    8r=88-32

    8r=56

    r=56/8

    r=7
  2. 28 October, 02:41
    0
    Undo multiplication by 4 by dividing each side by 4.

    %284%282r%2B8%29%29%2F4=88%2F4

    2r%2B8=22

    Next, undo the addition of 8 by subtracting 8 from each side:

    2r%2B8-8=22-8

    2r=14

    Finally, undo the multiplication by 2 by dividing both sides by 2:

    r=7
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