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).

[EX Q]: Let l = 1 + 7. Solve 4 + l = 3*s for s.
[EX A]: 4

[EX Q]: Let o be -12*-2*(-3)/(-24). What is the highest common factor of o and 33?
[EX A]: 3

[EX Q]: In base 11, what is -a4 - 2?
[EX A]:
-a6