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).

Input: Consider Input: What is the square root of 577 to the nearest integer?

Output: 24


Input: Consider Input: How many kilograms are there in 1/20 of a tonne?

Output: 50


Input: Consider Input: Solve 2*y + 4*v - 7 = 5*y, 0 = 5*y + 4*v + 1 for y.


Output: -1