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rezolvati ecuatia (5x-3):4=3 VA ROG.

Răspuns :

5x-3 = 12
5x = 15
x = 3
(5x-3):4=3
5x-3=3×4
5x-3=12
5x=12+3
5x=15
x=15:5
x=3

x€{3}