Answer:
(D) [tex]15m+2n[/tex]
Step-by-step explanation:
The equation is given by:
[tex]8m+4n+7m-2n[/tex]
Let y= [tex]15m+2n[/tex], then
Rewriting the like terms together and then adding or subtracting them, we have
y=[tex]8m+7m+4n-2n[/tex]
y=[tex]15m+2n[/tex]
Hence, simplified form of the given equation is [tex]15m+2n[/tex].
Therefore, option D is correct.
