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Simplification
What is value of P+QP-Q if PQ=7 ?
1/3
2/3
4/3
5/3
Correct Answer:
4/3
Explanation:
h
e
n
c
e
P
=
7
Q
P
+
Q
P
-
Q
=
7
Q
+
Q
7
Q
-
Q
=
8
Q
6
Q
=
4
3
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