All you have to do is distribute the -2 by multiplying it by each value.
-2 * 7 = -14
-2 * -a = 2a
So our answer is:
2a - 14
All you have to do is distribute the -2 by multiplying it by each value.
-2 * 7 = -14
-2 * -a = 2a
So our answer is:
2a - 14