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).
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Question: What is 43.59957 kilograms in tonnes?

Answer: 0.04359957


Question: Solve 56 - 20 = -3*i - 4*w, 5*i + 4*w = -44 for i.

Answer: -4


Question: Suppose -4*i + 12 = 3*x, -3*x = -5*i - x + 38. Suppose 5 = 5*a, l - i*l = a - 16. Solve 5*z + 18 = y - 4*y, -11 = l*z + 2*y for z.

Answer:
-3