A student has simplified the expression (3x + 2x + 5 + 6) as 16x.
Which is the MOST appropriate next step for the teacher to remediate the misconception?
1
Explain the meaning of variable and how it differs from a constant.
2
Revise the rule that only "like terms" can be added.
3
Put different values of x in both the expressions and show that they are not equal.
4
There is no issue in the student's understanding.
5
Question Not Attempted