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).

Suppose 2*y + 12 = 6*y. Suppose y = f - 15. Solve -8 = -4*w, -3*d - 4*w + f = -8*d for d.
-2

Let o(v) = -v**3 - 3*v**2 - 4*v - 6. Let u be o(-4). Suppose 3*q + 11 - u = 0. Solve -5*p = f - 4*p - 6, -3*f + 26 = q*p for f.
2

Calculate prob of picking 2 l and 1 g when three letters picked without replacement from ldblbrgurgbrlu.

3/182