Respuesta :

(Q-R)+(S-T)
(7m+3n-11-2m)+(n+5- -m-3n+8)
5m+3n-11+-2n+-3+-m
4m+n+-14
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Answer:

[Q-R]+[S-T]

[Q-R]

7m+3n-(11-2m)

7m+3n-11+2m

9m+3n-11

[S-T]

n+5-(-m-3n+8)

n+5+m+3n-8

4n+m-3

[Q-R]+[S-T]

9m+3n-11+4n+m-3

10m+7n-14

Step-by-step explanation:

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