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Byju's Answer
Standard X
Mathematics
Arithmetic Mean
[ 2 x-7-5 x; ...
Question
2x - (7-5x)
--------------- = 7/6
9x (3+4x)
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Solution
We will just do cross multiplication,
6{2x-(7-5x)} = 7{9x-(3+4x)}
6{2x-7+5x} = 7{9x-3-4x}
6{7x-7} = 7{5x-3}
42x-42 = 35x-21
7x = 21
x= 3.
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