Answer:
5n + 4m + 4
Step-by-step explanation:
You can't do anything to the coefficients 5n and 4m, since they both have their own variable. But, you can add 1 and 3 since they're by themselves without any variable. Hope this helps.
Answer: 4m + 5n + 4
Let's solve your problem step by step:
You need to combine like terms:
1 + 5n + 3 + 4m
= (4m) + (5n) + (1+3)
= 4m + 5n + 4
After you have combined like terms you are left with 4m + 5n + 4
