Answer:
A. 4x+7
Explanation:
4x has x-term as a variable while 7 only remains as a constant. Therefore, you cannot combine both terms as 11x since 4x and 7 are not like term.
Like terms are terms that have same variables and degrees. Some examples are:
- 2x and x are like term.
- 3x and 8x are like term.
Non-like terms are terms that have different variables and degree. Some examples are:
- x and y are not like term.
- x² and x are not like term.
Like terms operation:
- 2x + x = 3x
- 4x + 5x = 9x
- 9z + 2z = 11z
Non-like terms operation:
- 2x + 3y remains as itself.
- sum of 4 and 7x is 4 + 7x.
Let me know if you have any questions.