wykonaj działania
a) a+(a-b)=
b) 2x-(x+4)=
c) 7-(-x+6)=
d) -(x+4)+(x-5)=
e) 1-(t+p)-(t-2)=
f) -(-y+2)+(-2y-4)=
a) a+(a-b)=2a-b
b) 2x-(x+4)=x-4
c) 7-(-x+6)=x+7-6=x+1
d) -(x+4)+(x-5)=-x-4+x-5=-9
e) 1-(t+p)-(t-2)=1-t-p-t+2=-2t-p+3
f) -(-y+2)+(-2y-4)=y-2-2y-4=-y-6
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a) a+(a-b)=2a-b
b) 2x-(x+4)=x-4
c) 7-(-x+6)=x+7-6=x+1
d) -(x+4)+(x-5)=-x-4+x-5=-9
e) 1-(t+p)-(t-2)=1-t-p-t+2=-2t-p+3
f) -(-y+2)+(-2y-4)=y-2-2y-4=-y-6
liczę na naj