Answer:19.28 or 125/7
Explanation:
first, replace all the a's with 1's, the b's with 2's, and the c's with 4's. you end up with (-3(1)+4(2)) ³/2(4)-1
then you would solve that until you get, (-3+8)³/8-1
then, (5)³/7
and once you've solved that you get 19.28 or 125/7