How can I find an unknown "x" in a mod problem? Ex: 18 = x(mod 4) I should point out that the "=" has 3 lines - ex mod boats
The easiest way is the Department of Defense in the number of gap
revealed that 18 divided by 4 = 4 remainder 2nd
Usually, we are more interested in the report than the rest, but we want the rest if MODS
18 = 2 mod 4
19 = 3 mod 4
20 = 0 mod 4
21 = 1 mod 4
22 = 2 mod 4
MOD review of these classes are always lower than the mod #
Wednesday, November 11, 2009
Ex Mod Boats How Can I Find An Unknown "x" In A Mod Problem? Ex: 18 = X(mod 4) I Should Point Out That The "=" Has 3 Lines
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For the problem "Find all x such that x is congruent to C (mod 4), for a constant C, there are only four possible answers, namely:
(4k, k integer) = (x such that every x is congruent to 0 mod 4)
(4k 1 ...) = (ALL x such that x is congruent to 1 mod 4)
Similarly, for 2 and 3
In this case 18 is congruent to 2 modulo 4, in particular, is equal to 2 + 4 * 4. The answer is all x such that x is congruent to 2 (mod 4), or whatever else your teacher prefers the spelling of the concept.
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