3(a-1)+a= -5(b+8)-2b= 2x-3(x-1)= x+2(-5+8x)= -11-3(a-3)=
źródło:
3(a-1)+a=3a-3+a=4a-3
-5(b+8)-2b=-5b-40-2b=-7b-40
2x-3(x-1)=2x-3x+3=-x+3
x+2(-5+8x)=x-10+16x=17x-10
-11-3(a-3)=-11-3a+9=-3a-2