Answer:
12
Explanation:
Since c is equal to 2, you can plug that number into the original equation which is 6 + 3c.
When you have something such as 3c, it is saying 3 x c (3 multiplied by c)
So plugging in 2 in the original equation with give you:
6 + 3(2)
The parenthesis means you multiply the number which is 3 and 2 in this case
Then, because of the order of PEMDAS (basically telling you that you need to multiply everything before you add):
6 + 6
Then add:
12