help

hey guest!
 

so we can express x as 2y. so the first equation becomes 2y+1=y-8.

2y+1=y-8

2y+9=y

y+9=0

y=-9

we simplify by subtracting 1 from both sides to get x=y-9 so we get that y is 9 more than x and also is 2 times x so y=-9 and x=-18