August 2018 2 9 Report
Zapisz w jak najprostszej postaci.
a) (a+b)-(2a-b)-(a-2b)=
b)(3x-y+1)-(x+y)+(y-x)=
c) -(kx+ny)-(3kx+3ny)+(5kx-3ny)=
d) (2ab+a+3)-(3ab-a+3)=
e) (4x²-3x)-(x-0,1x²)-(x²-0,1x)=

.Proszę pomóżcie. Dam naj.
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