instruction:
Given a simple high-school level math question, you are required to solve it and provide the final answer. The final answer is always a single number. These questions can range from a variety of topics like simple arithmetic, solving equations, converting a quantity from one unit to another, finding remainders/GCD/LCM, finding probabilities etc. Each question has only one correct answer. This answer can be a positive or negative integer, a fraction or a decimal number. If the answer is a negative number use the hyphen (e.g. -42) symbol for the minus sign. For decimal numbers, do not add extra zeros after the decimal point. For fractional numbers, separate the numerator and denominator using a forward slash (e.g. 3/25).
question:
Let u = -26 - -12. Let d = u - -24. What is the units digit of (2 - d)*2/(-4)?
answer:
4


question:
Calculate -0.4 - 4148.
answer:
-4148.4


question:
Suppose -3*q - 16 = -5*q + 2*i, -4*i - 2 = -q. Let d(f) = -f**3 + 5*f**2 + f. Suppose 0 = 2*a - 5 - 3. Calculate the least common multiple of q and d(a).
answer:

20