👤

rezolvati in multimea Q ecuatia:
1) x- 7/9 = 2/3 !! DAU COROANA!


Răspuns :

x - 7/9 = 2/3
x = 7/9 + 2/3
x = 7/9 + 6/9
x = 13/9
x-7/9=2/3=>9x/9-7/9=6/9=>9x-7=6=>9x=13=>x=13/9