Решите неравенство: 9x>=4x+2.

Ответ:

\[9x \geq 4x + 2\]

\[9x - 4x \geq 2\]

\[5x \geq 2\]

\[x \geq \frac{2}{5}\ \]

\[Ответ:x \in \left\lbrack \frac{2}{5}; + \infty \right).\]