TASK DEFINITION: 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).
PROBLEM: In base 14, what is 2 - -129?

SOLUTION: 12b

PROBLEM: Let l = 1 + 7. Solve 4 + l = 3*s for s.

SOLUTION: 4

PROBLEM: Three letters picked without replacement from gggppgfffwgppggfwd. What is prob of picking 1 f, 1 d, and 1 g?

SOLUTION:
7/204