September 2018 1 21 Report

To jest coś o jakiś proporcjach..
1. Rozwiąż równania:
a) 2/x = 3/x-1
b) 4/x+1 = 5/x
c) 3/5 = 2x-1/2-5x
d) 2x+1/1-2x = 2/3
e) 0,4x-1/3 = 2x-5/2


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