August 2018 2 12 Report
Uzupełnij:
-11,4+.......=-2/5
...........=13%.(promila)
0,4=............. promila


Wstaw w odpowiednich miejscach nawiasy:

a)3x-2y+1-x+y=2x-3y+1
b)4m+2n-3+m-n+1=5m=n-4
c)-2t+u-w+t-1+w=-3t+u+1
d)-3x²-2x-1-5x²+3-7x²-3x=-5x²+x+4

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