3
Question
5a−[3b−{a−3(2a−b)}] is equal to
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Solution
The correct option is A 0
Given, 5a−[3b−{a−3(2a−b)}]
=5a−[3b−{a−6a+3b}]
=5a−[3b−{−5a+3b}]
=5a−[3b+5a−3b]
=5a−5a=0
Hence given expression vanishes.
Given, 5a−[3b−{a−3(2a−b)}]
=5a−[3b−{a−6a+3b}]
=5a−[3b−{−5a+3b}]
=5a−[3b+5a−3b]
=5a−5a=0
Hence given expression vanishes.
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