These are the problems:
1) Find the image of:

a) x - y = 8 under My=-x followed by translation ( 4, -1 )


b) x + 2y = 8 under R-9 followed by translation ( 2, -5 )


c) x + y = 1 under R9 followed by My=x followed by translation ( 3, 1 )


The answers are as follows:
a) x - y = 13
b) 2x - y = 5
c) y = x - 3

I have not managed to get the right answers. In your solutions, could you please provide each step of working. Thanks.