We can drag each expression to show whether it is equivalent to 6(c+6), 6c + 6, or neither as follows
2(3c+3)
3c+6+3c
What is the equivalent expression?
Equivalent expressions are expressions that have the same value for all possible values of the variables they contain.
The equivalent expression is the one that is equal to the original expression. So, the value we have is 6(c+6), 6c + 6. The expressions that mean the same thing are
2(3c+3), simplified as 6c + 6 and
3c+6+3c simplified as 3c + 3c + 6
= 6c + 6