Answer:
I plotted it out on the graph and here it is:
the constant term is 12
All the other terms have variables attached to them
12345678
23456789
34567890
45678901
56789012
The answer is 14x.
You always have to do whats in the parenthesis first. In this case you would do 7 + x = 7x. Then, you add this 7x to the other 7 x. 7x+7x=14x.