As per BODMAS rulefirst we perform(2-3) -(3-(-1) +5-7) -(-1) is +1so we write it as -(3+1+5-7) then -(9-7) is -(2) in another way we can write it as -(3-2+3+5-7) then -(11-9) -(2)
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As per BODMAS rulefirst we perform(2-3) -(3-(-1) +5-7) -(-1) is +1so we write it as -(3+1+5-7) then -(9-7) is -(2) in another way we can write it as -(3-2+3+5-7) then -(11-9) -(2)
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