Answer:
.4k+14
Step-by-step explanation:
You need to combine like terms. In this case that is -3.4k+3k, which is .4k. Then, we need to combine -7 and 21. -7+21=14.
Here, we have our answer: .4k+14.
= -0.4k+14
=-3.4k+-7+3k+21
=(-3.4k+3k)+(-7+21)
I hope this helps :)
sorry if it turns out to be wrong :/
