\[\boxed{\mathbf{467}.}\]
\[1)\ 0,6x + 0,9x = 0,96\]
\[1,5x = 0,96\]
\[x = 0,96\ :1,5\]
\[x = 96\ :150\]
\[x = 0,64.\]
\[2)\ 0,9x - 0,7x + 0,85 = 1,43\]
\[0,2x = 1,43 - 0,85\]
\[0,2x = 0,58\]
\[x = 0,58\ :0,2\]
\[x = 5,8\ :2\]
\[x = 2,9.\]