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Suppose that 11 = 49a - 7b + c, where a, b, c are all integers in {0, 1, 2, 3, 4, 5, 6}.  What is b?

 Jun 10, 2020
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a=1 b=6 and c=4 since it has to be a number between 0 and 6 so the only way is 49-42+4=11 and that makes a=1,b=6, and c=4

 Jun 10, 2020

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