\[\boxed{\text{45\ (45).}\text{\ }\text{Еуроки\ -\ ДЗ\ без\ мороки}}\]
Пояснение.
Решение.
\[1)\ \frac{5x - 4}{2} = \frac{16x + 1}{7}\ \ \ \ \ \ \ \ \ | \cdot 14\]
\[7 \cdot (5x - 4) = 2 \cdot (16x + 1)\]
\[35x - 28 = 32x + 2\]
\[35x - 32x = 2 + 28\]
\[3x = 30\]
\[x = \frac{30}{3}\]
\[x = 10\]
\[Ответ:x = 10.\]
\[2)\ \frac{4y + 33}{3} = \frac{17 + y}{2}\ \ \ \ \ \ \ \ \ | \cdot 6\]
\[2 \cdot (4y + 33) = 3 \cdot (17 + y)\]
\[8y + 66 = 51 + 3y\]
\[8y - 3y = 51 - 66\]
\[5y = - 15\]
\[y = - 3\]
\[Ответ:\ y = - 3.\]