instruction:
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).
question:
Solve 0 = 3*f - 2*x - 11, 0 = 2*x - 7*x - 5 for f.
answer:
3


question:
What comes next: 19, 16, 25, 58, 127?
answer:
244


question:
Solve 9*k - i = 12*k + 10, -k = -3*i for k.
answer:

-3