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:
Solve 3*q - 9 = -3*s + 5*s, -q + 3 = -3*s for q.
answer:
3


question:
Suppose 4*i + i = 45. Suppose 3*u = i*u - 132. Let v = -82 + 147. Calculate the remainder when v is divided by u.
answer:
21


question:
Four letters picked without replacement from {y: 3, t: 4, x: 2, r: 4, k: 1, o: 1}. What is prob of picking 2 y, 1 o, and 1 r?
answer:

4/455