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: Suppose -5*j + 6*j - 5 = 0. Solve j*y - 5 = -3*u, 5*y - u = -1 - 14 for y.

A: -2
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Q: Suppose -3 = -j - 4. Let h be j + 0 + (4 - 3). What is the units digit of h - -1 - 6*-1?

A: 7
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Q: Suppose 0 = -5*w - 3*y + 1878, -3*w + y = 2*y - 1130. Suppose 83 = a - 142. Let n = w - a. What is the highest common factor of n and 17?

A:
17
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