\[\boxed{\text{136\ (136).}\text{\ }\text{Еуроки\ -\ ДЗ\ без\ мороки}}\]
\[Составим\ уравнения\ по\ \]
\[условию\ и\ решим\ их.\]
\[\textbf{а)}\ 5y + 3 = 36 - y\]
\[5y + y = 36 - 3\]
\[6y = 33\]
\[y = 33\ :6\]
\[y = 5,5\]
\[Ответ:при\ y = 5,5.\]
\[\textbf{б)}\ 7y - 2 = 2y + 10\]
\[7y - 2y = 10 + 2\]
\[5y = 12\]
\[y = 12\ :5\]
\[y = 2,4\ \]
\[Ответ:при\ y = 2,4.\]
\[\textbf{в)}\ 1,7y + 37 + 14 = 9,3y - 25\]
\[1,7y - 9,3y = - 25 - 51\]
\[- 7,6y = - 76\]
\[y = - 76\ :( - 7,6)\]
\[y = 760\ :76\]
\[y = 10\]
\[Ответ:при\ y = 10.\]