Answer:
Step-by-step explanation:
5x + 2x = (5 + 2)x = 7x..
Answer: 7x
Explanation: In order for you to be able to add two terms together, you have to have a situation like you do in this problem, 5x + 2x.
Since both terms contain an x, you can add them together.
So 5x + 2x simplifies to 7x.
