What is the simplified form of the following expression

What is the solution to the system of the equations? x = y - 3 x + 3y = 13

On any given day, the number of users, u, that access a certain website can be represented by the inequality 1125-4530 which of the following represents the range of users that access the website each day? u> 95 or u < 155 95> u> 155 u< 95 or > 155 95

Answer question above and explain each step : )