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Question : 117 of 200
Marks:
+1,
-0
Solution:
(3)By equation II × 2 – equation
(I)
8x+6y=118
7x+6y=110
– – –
____________
x=8
From equation (I),
7×8+6y=110
⇒6y=110–56=54
⇒y=9
From equation (III),
8+z=15⇒z=7
Clearly, x < y > z
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