①
5(x-2)+1=x-2x+1
5x-10+1=-x+1
5x-9+x-1=0
6x=10
x=5/3
②
17(2-3y)-5(12-y)=8(1-7y)
34-51y-60+5y=8-56y
-46y-26=8-56y
-46y-26-8+56y=0
10y=34
y=3.4检验过了没恩