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 36*u - 20 = 52 for u.

Ex Output:
2


Ex Input:
Let s(z) = -z**3 + 4*z**2 + 7*z + 2. Let g be s(5). Suppose -3*h + 155 + 526 = 0. Let b = 323 - h. What is the highest common divisor of g and b?

Ex Output:
12


Ex Input:
-7.3 * -0.5

Ex Output:

3.65