Решебник по математике 5 класс Алышева Нахождение неизвестного уменьшаемого Задание 7

\[\boxed{\mathbf{7.}}\]

\[x - 25 = 60\]

\[x = 60 + 25\]

\[x = 85.\]

\[Проверка.\]

\[85 - 25 = 60\]

\[60 = 60.\]

\[x + 25 = 60\]

\[x = 60 - 25\]

\[x = 35.\]

\[Проверка.\]

\[35 + 25 = 60\]

\[60 = 60.\]

\[33 + x = 66\]

\[x = 66 - 33\]

\[x = 33.\]

\[Проверка.\]

\[33 + 33 = 66\]

\[66 = 66.\]

\[x + 8 = 92\]

\[x = 92 - 8\]

\[x = 84.\]

\[Проверка.\]

\[84 + 8 = 92\]

\[92 = 92.\]

\[x - 8 = 92\]

\[x = 92 + 8\]

\[x = 100.\]

\[Проверка.\]

\[100 - 8 = 92\]

\[92 = 92.\]