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Diophantine Equations
hard
0:00.0
Solve
21
x
−
13
y
=
1
21x - 13y = 1
21
x
−
13
y
=
1
for smallest positive
x
x
x
.
A
5
5
5
B
1
1
1
C
8
8
8
D
13
13
13
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