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:
Suppose -3*x = -2*y, -y - 3*x = -6*x. Let c = 2 - y. Suppose -c*u = 5*t - 1 + 9, 0 = 4*u + 3*t + 2. What is the remainder when 2 is divided by u?

Ex Output:
0


Ex Input:
Solve -2*i = -4*x + 1 - 17, 5*i = 5*x + 20 for i.

Ex Output:
0


Ex Input:
Let h(n) = 11*n + 11. Let u(k) = 5*k + 5. Let q(s) = 4*h(s) - 9*u(s). Let p be q(-3). Suppose 32 = a - p*a. What is the common denominator of a and -42?

Ex Output:

1