Question

Cuanto es
(12m-n+5)+(6m-8n+4)

Answer 1

$\bf \textcolor{cyan}{(12m - n + 5) + (6m - 8n + 4) = } \\ \\ \bf \textcolor{orange}{12m - n + 5 + 6m - 8n + 4 = } \\ \\ \boxed {18m - 9n + 9}$

Lasers✨

Answer 2

Explicación paso a paso:

(12m-n+5)+(6m-8n+4) =

12m + 6m - n - 8n + 5+ 4 =

18m -9n + 9.