-9+x-3y+3y=х-9
15-2x-1=14-2х
-10n-8m-m=-10n-9m
8a+8c+2c=8a+10c
48a-12b-2b+a=49a-14b
-14a-5-12a=-26a-5
45+6y-6=39+6y
3-f-1-4f=2-5f
-9+x-3y+3y=х-9
15-2x-1=14-2х
-10n-8m-m=-10n-9m
8a+8c+2c=8a+10c
48a-12b-2b+a=49a-14b
-14a-5-12a=-26a-5
45+6y-6=39+6y
3-f-1-4f=2-5f