Solve the following modular equations. In each case please use the smallest positive solution. a) 4 + x = 9 mod 15 x = b) 2x + 1 = 6 mod 5 x = c) 7* = 9 mod 10 x =

Database System Concepts
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Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
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Solve the following modular equations. In each case please use the smallest positive solution.
a) 4 + x = 9 mod 15
X =
b) 2x + 1 = 6 mod 5
X =
c) 7* = 9 mod 10
X =
Transcribed Image Text:Solve the following modular equations. In each case please use the smallest positive solution. a) 4 + x = 9 mod 15 X = b) 2x + 1 = 6 mod 5 X = c) 7* = 9 mod 10 X =
Expert Solution
Step 1

a) Given modular equation is, 4+x9 mod 15

The value 9 mod 15 is 9.

To get smallest positive solution, 4+x=9

x=9-4

x=5

Hence, the value of x is 5.

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