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).

Let b be ((-4)/(-6))/(4/(-6)). Let l be ((b - -1) + 0)*-1. Solve -3*d = 4*x + 2*d + 45, 5*x - 3*d + 10 = l for x.
-5

Let s(z) = -z**3 + 4*z**2 + 7*z + 2. Let g be s(5). Suppose -3*h + 155 + 526 = 0. Let b = 323 - h. What is the highest common divisor of g and b?
12

Calculate prob of sequence vff when three letters picked without replacement from {v: 1, f: 12, a: 6}.

22/969