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Byju's Answer
Standard XII
Mathematics
Combination
Does the cong...
Question
Does the congruence
13
x
≡
9
(mod 25) possess a solution ? If it possesses, find the solution.
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Solution
We need to solve
13
x
=
9
(mod25)
⇒
13
x
=
9
+
25
k
k
∈
R
⇒
13
x
−
9
=
25
k
∴
x
=
18
is a solution.
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