September 2018 2 13 Report
Zad 1.
Oblicz niewiadomą i zapisz obliczenia :
a) 3x +7 = -5
b)2(x+6)= -4
Zad2.
Rozwiąż równania:
2a-3=a+1
4b+3=3b-4
7+3c= -5+2c
5d+2=3d
6e-2=7e+5
6f-1=f+2

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