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 5*c = 3*z - 31, 0*c + c + 7 = z for c.
answer:
-5


question:
What is prob of sequence tt when two letters picked without replacement from {t: 2, h: 1, u: 1, m: 2}?
answer:
1/15


question:
Suppose -5*z + 6 = -2*z. Suppose -5*f = 5*t - 33 - 32, 2*f - 5*t = -z. Suppose 7 = u - f. Calculate the least common multiple of 16 and u.
answer:

16