ans question no 40 explain your answer options are wrong
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-2b -[4a -6b - {3a -c+ (5a -2b-3a-c)}]
-2b -[4a -6b - {3a -c+2a-2b-c}]
-2b -[4a -6b - a-2c-2b]
-2b -3a - 8b -2c
=-10 b -8b -2c
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plz mark it as brainliest
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