Question

5mn-9m+16n and 8mn-5n-3m​

Answer 1

$\sf{Question:-}$

Add => 5mn-9m+16n and 8mn-5n-3m.

$\bold{Solution :-}$

=>5mn-9m+16n + 8mn-5n-3m

Combining like and unlike term :-

=>8mn +5mn - 9m-3m+16-5n

=>13 mn - 12m+11 n

Answer :-

=>13 mn - 12m+11 n