Question

add: 3mn,-5mn,8mn,-4mn

I'll mark you brainliest for sure if you answer me this ​

Answer 1

Answer:

2mn

Step-by-step explanation:

please mark me as brainliest

Answer 2

Answer:

3mn+(-5mn)+8mn+(-4mn)

3mn-5mn+8mn-4mn

3mn+8mn-5mn-4mn

11mn+(-9mn)

11mn-9mn

2mn