add m-n and m+n. solve this question
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Answered by
2
-->m-n+(m+n)
-->m-n+m+n
-->m+m
-->2m
-->m-n+m+n
-->m+m
-->2m
Laibu:
what is question
Answered by
1
m- n+m+n=2m. this is your answer
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