DODAWANIE I ODEJMOWANIE SUM ALGEBRAICZNYCH 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)
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a) 2a-b
b) x-4
c) 1+x
d) -x-4+x-5=-9
e) 1-t-p-t+2=3-p-2t
f) -y-6
a) a+(a-b)=a+a-b=2a-b
b) 2x-(x+4)=2x-x-4=x-4
c) 7-(-x+6)=7+x-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