Uh, the answer should actually be y = -x, although I see no answer choice for that. x cannot be equal to -x because if x was equal to 3, then that would mean that it's really -3, and that would mean that it's really 3, and so on.
C. using a standard deck of 52 cards, the probability of selecting a 4 of diamonds or a 4 of hearts is an example of a mutually exclusive event. true of false
Problem number 26 of the rhind papyrus says: find a quantity such that when it is added to of itself the result is a 15. the modern day equation that models this problem is x + x = 15. what is the solution to the equation? x = 10 x = 12 x = 15 x = 30