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Mathematics
Problem
The 5th term of an AP is
3
x
+
2
3x+2
3
x
+
2
and the 12th term is
6
x
−
7
6x-7
6
x
−
7
. Express the first term
a
a
a
and the common difference
d
d
d
in terms of
x
x
x
.
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