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26 October, 20:07

If a divided by 7 has a remainder of 6, what is the remainder when 4a is divided by 7?

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Answers (2)
  1. 26 October, 20:28
    0
    I will assume that the least number you're asking for is a positive number.

    Then we have to find the smallest positive integer n that satisfies the simultaneous system of congruences

    n = 4 mod 7,

    n = 5 mod 8,

    n = 6 mod 9
  2. 26 October, 20:30
    0
    The correct answer is 3 hope i can answer more of your questions = {)
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