Verified answer

Ответ:

2(5+x)-3x=10+2x-3x=10-x

-4(3-a)-a=-12+4a-a=3a-12=3(a-4)

6(5-c)+7=30-6c+7=37-6c

4(2n+3m)-6m-8n=8n+12m-6m-8n=6m

-(-10n+12)-14=10n-12-14=10n-26

7(-y+2)-(y-4)=-7y+14-y+4=18-8y

18-(3a+10)=18-3a-10=8-3a

5(a-2)+4=5a-10+4=5a-6

3(-x+5)+4x=-3x-15+4x=x-15

-(12+y)+(y-6)=-12-y+y-6=-18

-3(n+m)+2m=-3n-3m+2m=-3n-m

2(-3a-2)-a=-6a-6-a=-7a-6

-(7+c)+(6-c)=-7-c+6-c=-1-2c

(3b+4a)•4+a=12b+16a+a=12b+17a