October 2018 2 17 Report

1.przekształć wyrażenia 1/2(4a+1)=

-2/3(6y-9)=

-0,2(-b-1)=

-5(-3+b-0,7)=

2.jakimi liczbami należy zastopić kwadraciki

5(4n+6k)=10(...n+...k)

-3(2x+4)=2(...x-...)


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