If 5 = 3, what does 5 2x equal? 5-2x (Type an integer or a simplified fraction.) %3D 5.3.87 If 10X = 13, what does 102X equal? 102x - (Type a reduced fraction.) %3D 5.3.89 If 49 = 25, what does 7* equal? 7* = |(Simplify your answer. Type an integer or a fraction.)