1)4,6-4b-(-3,8b+3,5a)= 4,6-4b+ 3,8b-3,5a = 4,6-0,2b-3,5a
2)2a-(8-a)+(3a-2)=2a-8+a+3a-2=6а-10
3)8-6(2x-1/2)+12=8-12x+3+12 =23-12х
1)4,6-4b-(-3,8b+3,5a)= 4,6-4b+ 3,8b-3,5a = 4,6-0,2b-3,5a
2)2a-(8-a)+(3a-2)=2a-8+a+3a-2=6а-10
3)8-6(2x-1/2)+12=8-12x+3+12 =23-12х