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08-05-2016
Mathematics

contestada

Simplify 2m - [n - (m - 2n)].

-3m - n
3m - n
-3m - 3n
3m - 3n

Respuesta :

10-05-2016

2m - [n - (m - 2n)]

2m - n + (m - 2n)

2m - n + m - 2n

2m + m - n - 2n

3m - 3n

Answer is D.

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