\[\boxed{\mathbf{2}\mathbf{.}\mathbf{209}}\]
\[5088 + 4618 = 9706\]
\[\textbf{а)}\ 9706 - 5088 = 4618\]
\[\textbf{б)}\ 9706 - 4618 = 5088\]
\[\textbf{в)}\ x + 4618 = 9706\]
\[x = 5088.\]
\[\textbf{г)}\ 5088 + y = 9706\]
\[y = 4618.\]
\[\textbf{д)}\ 9706 - x = 5088\]
\[x = 4618.\]
\[\textbf{е)}\ 9706 - v = 4618\]
\[v = 5088.\]