1.

Simplify m-[m+{m-n+2m-(m-2n)}-m]

Answer»

Simplication :

m - [ m + { m - n + 2m - (m - 2n)} - m]

m - [ m + m - n + 2m - m + 2n - m]

m - [ 2m + 2m - 2m - n + 2n]

m - [ 2m + n]

m - 2m - n

- m - n



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