Решите неравенство: -(2x+1) <=3*(x+2).

Ответ:

\[- (2x + 1) \leq 3 \cdot (x + 2)\]

\[- 2x - 2 \leq 3x + 6\ \]

\[- 2x - 3x \leq 6 + 1\]

\[- 5x \leq 7\]

\[x \geq - 1\frac{2}{5}\]

\[Ответ:x \in \left\lbrack - 1\frac{2}{5}; + \infty \right).\]