Select true or false to each statement for a real number a, a + 0 = a. for a real number a, a + (-a) = 1. for a real numbers a and b, | a - b | = | b - a |. for real numbers a, b, and c, a + (b ∙ c) = (a + b)(a + c). for rational numbers a and b when b ≠ 0, is always a rational number. which ones are true and false?