Question

suma a trei nr consecutive e 168 determinati nr

Answer 1

a + (a+1) + (a + 2 ) = 168
3a + 3 = 168
3a = 165    a = 55
numerele : 55; 56; 57;

Answer 2

$a \\ a+1 \\ a+2 \\ --- \\ 3a+3 = 168 \\ 3a=168-3 \\ 3a=165 \\ a=163:3\\a=55 \\ \\\texttt{Numerele sunt 55, 56, 57}$