\[\mathbf{Страница\ 79.}\]
\[\boxed{\mathbf{10.}}\]
\[\textbf{а)}\ 896 - 8x = 32\]
\[8x = 896 - 32\]
\[8x = 864\]
\[x = 864\ :8\]
\[x = 108.\]
\[Ответ:108.\]
\[\textbf{б)}\ (x - 70)\ :4 = 380\]
\[x - 70 = 380 \cdot 4\]
\[x - 70 = 1520\]
\[x = 1520 + 70\]
\[x = 1590.\]
\[Ответ:\ 1590.\]