Question

решить неравенство 2(x-3)+1<=5(x+2)

Answer 1

$2(x-3)+1 \leq 5(x+2)\\\\2x-6+1 \leq 5x+10\\\\2x-5x \leq 10+6-1\\\\-3x \leq 15\\\\x \geq -\frac{15}{3}\\\\x \geq -5$

x Є [-5, $+\infty)$ .