wykonaj działania a+(a-b)= 2x-(x+4)= 7-(-x+6)= -(x+4)+(x-5)= 1-(t+p)-(t-2)= -(-y+2)+(-2y-4)=
wykonaj działania
a+(a-b)=
2x-(x+4)=
7-(-x+6)=
-(x+4)+(x-5)=
1-(t+p)-(t-2)=
-(-y+2)+(-2y-4)=
a+(a-b)=a+a-b=2a-b 2x-(x+4)=2x-x-4=x-4 7-(-x+6)=7+x-6=1+x -(x+4)+(x-5)=-x-4+x-5=-9 1-(t+p)-(t-2)=1-t-p-t+2=3-2t-p -(-y+2)+(-2y-4)= y-2-2y-4=-6-y