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Rezolvati ecuatia:
238-5(x-1)=199
Coroana


Răspuns :

238-5(x-1)=199
238 -5x+5 =199
243 = 199 + 5x
5x = 243 - 199
5x = 44
x = 44/5 = 8  intreg si 4/5