September 2018 2 20 Report

Zapisz wyrażenia nie używająć nawiasów.

a) -(3a+6)-4=

b) -(2x-1)-(3x+1)=

c) (4a-7b)-(2a+3b)=

d) (2p-r)+(2r-p)=

e) (x+y)+(x-z)+(z-y)=


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