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: Suppose -x + 10 = 4*x. Suppose 0 = -2*h + 7 + 13. Calculate the least common multiple of x/10 - 413/(-35) and h.

Answer: 60


Question: Let n(s) = s**2 + 3*s + 2. Let z be n(-2). Suppose z = j + j - 70. Suppose -j - 56 = -t. What is the highest common factor of 13 and t?

Answer: 13


Question: Three letters picked without replacement from {p: 3, t: 1, e: 8, i: 1, w: 4}. Give prob of picking 2 p and 1 t.

Answer:
3/680