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: -4*80.8

Answer: -323.2


Question: Let k be 3/(-2)*(-72)/27. Solve k*w - 6 = w for w.

Answer: 2


Question: Let x be 11 + -3 + 1/1. Suppose 3*m + 0*m - x = 0. Suppose -5*d + 4*d = -m. What is the units digit of d?

Answer:
3