Question #259761

What is 6 mod 9 + 11 mod 9 congruent to?

a) 8 mod 9

b) 6 mod 9

c) 7 mod 9

d) 0 mod 9


1
Expert's answer
2021-11-15T16:22:45-0500

6mod 9+11mod 917mod 9=8mod 96 mod\ 9 + 11 mod\ 9\equiv17mod\ 9=8mod\ 9


Answer: a) 8 mod 9


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