Question

If X and y are positive integers such
that (3x - 7y) is a multiple of 11,
then which of the following will also
be divisible by 11?​
(a) 4x + 6y
(b) x + y + 4
(c) 9x + 4y
(d) 4x - 9y

Answer 1

Answer:

Option b.

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