Answer:
5 is the coefficient.
Explanation:
To find the simplified expression, you need to simplify the original expression.
3x + 2 - 3x + 7 +5x
Combine like terms
3x - 3x + 5x = 5x
2 + 7 = 9
The simplified equation is 9 + 5x
The coefficient is the number being multiplied with the variable. I this case it is 5.