Помогите с показательными неравенствами

$1) (\frac{1}{2})^{20-2x}\ \textgreater \ 1 \\(\frac{1}{2})^{20-2x}\ \textgreater \ (\frac{1}{2})^{0} \\ \frac{1}{2}\ \textless \ 1 =\ \textgreater \ \\ 20-2x\ \textless \ 0 \\ -2x\ \textless \ -20 \\ x\ \textgreater \ 10$
Ответ: 11
$2)(\frac{4}{9})^x* (\frac{3}{2})^x\ \textgreater \ (\frac{2}{3})^6*(\frac{2}{3})^{-2x} \\ (\frac{2}{3})^2)^x*((\frac{2}{3})^x)^{-1}\ \textgreater \ (\frac{2}{3})^{6-2x} \\ (\frac{2}{3})^{2x-x}\ \textgreater \ (\frac{2}{3})^{6-2x} \\ \frac{2}{3}\ \textless \ 1 =\ \textgreater \ \\ 2x-x\ \textless \ 6-2x \\ x+2x\ \textless \ 6 \\ 3x\ \textless \ 6 \\ x\ \textless \ 2$
Ответ: 1