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Suppose that A and B are digits in base d > 6 such that \(\overline{AB}_d + \overline{AA}_d = 162_d\). Find \(A_d - B_d\) in base d.

 Sep 13, 2020
 #1
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74_9  +  77_9 = 162_9

 

7_9  -  4_9 = 3_9

 Sep 13, 2020
 #2
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Correct! Thanks!

Guest Sep 13, 2020

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