\[\boxed{\mathbf{П.\ 41}}\]
\[целых\ чисел.\]
\[Их\ сумма\ равна\ ( - 42).\]
\[Составим\ уравнение:\]
\[7x + 21 = - 42\]
\[7x = - 42 - 21\]
\[7x = - 63\]
\[x = - 63\ :21 = - 3.\]
\[x + 1 = - 2.\]
\[x + 2 = - 3 + 2 = - 1.\]
\[x + 3 = - 3 + 3 = 0.\]
\[x + 4 = - 3 + 4 = 1.\]
\[x + 5 = - 3 + 5 = 2.\]
\[x + 6 = - 3 + 6 = 3.\]
\[Ответ:числа\ \ - 3;\ - 2;\ - 1;\ \ 0;\]
\[\ \ 1;\ \ 2;\ \ 3.\]