Задание

Решите неравенство: \(\displaystyle 6z \ge 3z+20\)

Решите неравенство: \(\displaystyle -5u\ge -4u+8\)

\(\displaystyle z\)[?|≤|≥|=|>|<][ ]
\(\displaystyle u\)[?|≤|≥|=|>|<][ ]