September 2018 2 15 Report

Doprowadź do najprostszej postaci

a) -(-2a+5b-4)+(2a-3b-4)-(-3a-b+2)=

b) (-5a+6-3)-(2a-3b+5)-(4a-b-8)=

c) 2(a-3b)-3(a-b)-5(4a+3b)=


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