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).

[Q]: Let z be 69/21 - 4/14. Solve 0*f + 3*f - 4 = 2*s, -z*f = 3*s - 24 for s.
[A]: 4


[Q]: Calculate 5 - (-4 - 140/(-16)).
[A]: 1/4


[Q]: Suppose -4*i = -11 + 3. Suppose i*b - 46 = -2*j, 2*b - 25 = -j + 3*b. Suppose -j = -2*d - d. What is the remainder when 14 is divided by d?
[A]:
6