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).

Ex Input:
Solve -4*g = q, -4*g + 2*g + 4*q = 0 for g.

Ex Output:
0


Ex Input:
What comes next: -13616, -13610, -13602, -13592, -13580, -13566, -13550?

Ex Output:
-13532


Ex Input:
Suppose 0 = 2*r + 8*r - 110. Let a(s) = s**2 + 1. Let d(f) = f**2 - 8*f. Let u be d(8). Let i be a(u). What is the highest common factor of i and r?

Ex Output:

1