Consider the following pair of equations: y = 3x + 3 y = x − 1 explain how you will solve the pair of equations by substitution. show all the steps and write the solution in (x, y) form.

Sue's average score for three bowling games was 162. in the second game, sue scored 10 less than in the first game. in the third game, she scored 13 less than in the second game. what was her score in the first game?