-a-[a+{a+b-2a-(a-b)}-b]
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0
Answer:
hope it helps u
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Answer:
-b
Step-by-step explanation:
= -a-[a+{a+b-2a-a+b}-b]
= -a-[a+{2b-2a}-b]
= -a-[a+2b-2a-b]
= -a-[b-a]
= -a-b+a
= -b
Therefore I am getting this answer so if you think it's right then mark my answer as brainlist Thanks
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