Question

Simplify 12.6h + 4.5k – 1.5h.

Answer 1

The answer is 11.1h + 4.5k

Answer 2

You want to combine your like terms. So you will combine both h terms.
12.6h - 1.5h = 11.1h
There is not anythings to combine with the k term, so you just leave it as is.
Your answer would be:

11.1h + 4.5k