Answer:
5h+9
Explanation:
10h + 6 - 5h + 3 = 10h - 5h + 6 + 3
I rearranged the like terms together so that it is easier to calculate later on. This step is optional.
10h - 5h + 6 + 3 = 5h + 9
Evaluate the like terms. (10h-5h = 5h) & (6+3 = 9)
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