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Urgentttttt
Dau coroana


UrgenttttttDau Coroana class=

Răspuns :

[tex]x + 3 = \frac{5}{7} | \times 7[/tex]

[tex]7x + 21 = 5[/tex]

[tex]7x = 5 - 21[/tex]

[tex]7x = - 16[/tex]

[tex]x = - \frac{16 }{7} [/tex]