November 2018 2 9 Report

1. Podaj właściwy wynik działania

A) 5x+7y[do potęgi 2]-9x-7y[do potęgi 2] +8=?

B) (7a-8b)-(10a-2b)=?

C) 2x(3x-5y)=?

2. Rozwiąż równania

A)6x-3=12+3x

B) 2x-5/3 = 6-x/5


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