Answer:
7x+3
Explanation:
The only like terms are 5x and 2x
5+2=7
7x + 3
Like terms are numbers with the same variables.
In 5x+3+2x, there are two terms that have the variable x.
You can combine 5x and 2x to be 7x.
5x + 3 + 2x
= 7x + 3
3 cannot be combined with them because it has no variable.
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