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 Q]: Let v = -7 - -11. Suppose 0 = 5*n + n - 78. Suppose v*a + n = p, -p + 15 = 5*a + 2. What is the tens digit of p?
[EX A]: 1

[EX Q]: What is next in 240, 198, 156, 114, 72, 30?
[EX A]: -12

[EX Q]: Suppose 3*g - m - 785 = 0, g - 7*m - 271 = -2*m. What is the tens digit of g/(-6)*4/(-6)?
[EX A]:
2