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Suma a trei nr naturale consecutive este 54. Aflati numerele

Răspuns :

[tex]x\\x+1\\x+2\\*****\\3x+3=54\\3x=54-3\\3x=51\\x=51:3\\\boxed{x=17}\\[/tex]

[tex]x=17\\x+1=18\\x+2=19[/tex]
n + n+ 1 + n+ 2 = 54 
3n = 51 
n = 17 
numerele 17 ,18 ,19