Plz help me with this question

What is the effect on the graph of the parent function f(x) = x when f(x) is replaced with 3f(x)? a) shifts the line 3 units up b) shifts the line 3 units down c) increases the slope of the line by a factor of 3 d) decreases the slope of the line by a factor of 3

What is the value of x in the following equation? -3x-2=2x+8

James was playing a game with his friends. he won 35 points. then he lost 15, lost 40 and won 55. how did he come out