"two times the sum of a number and five is negative two" is not a question. Therefore, it cannot have an answer. Hint: "two times the sum of a number and five is negative two" is a statement that is either true or false, depending on the value of "a number". So, what do you think the question should be?
John
Egw to Beta kai to Sigma
My calculator said it, I believe it, that settles it