Answer:
-41
Step-by-step explanation:
Here your a(x) = |13 - 2x|, and your b(x) = 8x - 14.
b(-2) is found by substituting -2 for x: b(-2) = 8(-2) - 14 = -16 - 14 = -30
-a(12) is found by substituting 12 for x in a(x): a(12) = |13 - 2(12)| = |13 - 24| = 11
Then b(-2) - a(12) = -30 - 11 = -41