Решите -(7-x)+(3x-14)=
-(x+4)-(2x-8)=
(21-a)-(20-2a)=
-(13+b)+(-b-13)=
2*(3-x)-(8+x)=
-4(y+5)+(12-y)=
-(7-x)+4(x-5)=
-9(y-4)-(12+y)=
-(x+4)-(2x-8)=
(21-a)-(20-2a)=
-(13+b)+(-b-13)=
2*(3-x)-(8+x)=
-4(y+5)+(12-y)=
-(7-x)+4(x-5)=
-9(y-4)-(12+y)=