Verified Answer :

christinaperez

Let's simplify step-by-step.

2m−(n−(m−2n))

Distribute the Negative Sign:

=2m+−1(n−(m−2n))

=2m+−1n+−1(−m)+−1(2n)

=2m+−n+m+−2n

Combine Like Terms:

=2m+−n+m+−2n

=(2m+m)+(−n+−2n)

=3m+−3n

Answer:

=3m−3n

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