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]: Solve 3*x = t + 11, 2*x = 3*x + 4*t - 21 for x.
[A]: 5


[Q]: What is 43.59957 kilograms in tonnes?
[A]: 0.04359957


[Q]: What is prob of picking 1 c and 1 z when two letters picked without replacement from {c: 6, k: 1, z: 8, d: 1}?
[A]:
2/5