September 2018 3 33 Report
Rozwiąż równania i wykonaj sprawdzenia.
a) 4x + 13 + 6x + 2 = 13 + 8x + 14
b) 7 - 3x + 8 - 5x = 10 + 2x - 5 + 5x
c) 7x + 14 - 3x - 8 = 11x - 3 - x
d) 3x + 13 - x +14,5 = 41 - 3x + 4,5 + x
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