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-a -[a + {a + b -2a -(a -2b)} -b] |
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Answer» -2(a+B) Step-by-step explanation: -a-[a+{a+b-2a-a-2b}-b]=-a+[a+a+b-3a-2b-b]=-a-a-2b=-2a-2b=-2(a+b) please MARK me as brainlist |
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