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Banguizb 2022-07-03 Answered
y = 3 x + 7 ( mod 4 ) , x , y Z 4
x = 2 , y =??
Find the inverse function and verify the value of y.
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Answers (1)

Isla Klein
Answered 2022-07-04 Author has 12 answers
Solve it like this (adding mod 4 after everything of course)
y = 3 x + 7 y 7 = 3 x 3 1 ( y 7 ) = 3 1 3 x 3 1 ( y 7 ) = x
So all you need to do is find the inverse of 3 mod 4.
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