Решебник по математике 5 класс Виленкин Часть 1, 2 Часть 2. Параграф 5. Обыкновенные дроби Задание 194

\[\boxed{\text{5.194.}}\]

\[\textbf{а)}\ (z - 39) \cdot 37 = 7\ 955\]

\[z - 39 = 7\ 955\ :37\]

\[z - 39 = 215\]

\[z = 215 + 39\]

\[z = 254.\ \]

\[Ответ:254.\]

\[\textbf{б)}\ 789 \cdot (t - 361) = 11\ 835\]

\[t - 361 = 11\ 835\ :789\]

\[t - 361 = 15\]

\[t = 15 + 361\]

\[t = 376.\ \]

\[Ответ:376.\]

\[\textbf{в)}\ (205 \cdot 78 + m)\ :9\ 109 = 6\]

\[15\ 990 + m = 6 \cdot 9\ 109\]

\[15\ 990 + m = 54\ 654\]

\[m = 54\ 654 - 15\ 990\]

\[m = 38\ 664.\ \]

\[Ответ:38\ 664.\]

\[\textbf{г)}\ 49\ 635\ :(m - 973) = 1\ 103\]

\[m - 973 = 49\ 635\ :1\ 103\]

\[m - 973 = 45\]

\[m = 45 + 973\]

\[m = 1\ 018\text{.\ }\]

\[Ответ:1\ 018.\]

\[\textbf{д)}\ 21z + 7z - 38 = 46\]

\[28z = 46 + 38\]

\[28z = 84\]

\[z = 84\ :28\]

\[z = 3.\ \]

\[Ответ:3.\]

\[\textbf{е)}\ 24t - 13t - 7 = 15\ \]

\[11t = 15 + 7\]

\[11t = 22\]

\[t = 22\ :11\]

\[t = 2.\ \]

\[Ответ:2.\]