Question

simply n+(m+1)+(n+2)+(m+3)+(n+4)+(m+5)

Answer 1

Answer:

= 3n + 3m + 15

Step-by-step explanation:

= n+(m+1)+(n+2)+(m+3)+(n+4)+(m+5)

= n+ m+ 1 +n +2 +m+3 + n +4 + m+5

= 3n + 3m + 15