§ Задание 151
\[\boxed{\mathbf{4.}\mathbf{151}}\]
\[\textbf{а)}\ x = 4;y = 2.\]
\[\textbf{б)}\ x = - 6;y = 4.\]
\[\textbf{в)}\ x = - 8;\ \ y = 12.\]
\[\textbf{г)}\ x = - 3;y = - 6.\ \]
\[\boxed{\mathbf{4.}\mathbf{151}}\]
\[\textbf{а)}\ x = 4;y = 2.\]
\[\textbf{б)}\ x = - 6;y = 4.\]
\[\textbf{в)}\ x = - 8;\ \ y = 12.\]
\[\textbf{г)}\ x = - 3;y = - 6.\ \]