Answer: options B,C,D
Explanation:
We have to simplify the given expression given (5x + 3y + (-x) + 6z).
We will use the process as given below.
1) We will identify the like terms, we have to add or subtract.
2) Like terms are those, which have the same variable of the same degree.
3) We get the simplified expression by combining the same terms.
5x + 3y + (-x) + 6z = 4x + 3y + 6z
Therefore, Options B, C and D will be the correct options.