Question

Допоможіть залишилося 10 хв.

Answer 1

Ответ:

$\left\{\begin{array}{l}7x-3\geq 4(x-3)\\x+5\geq 3x-11\end{array}\right\ \ \left\{\begin{array}{l}7x-3\geq 4x-12\\5+11\geq 3x-x\end{array}\right\ \ \left\{\begin{array}{l}7x-4x\geq 3-12\\5+11\geq 3x-x\end{array}\right\\\\\\\left\{\begin{array}{l}3x\geq -9\\16\geq 2x\end{array}\right\ \ \left\{\begin{array}{l}x\geq -3\\8\geq x\end{array}\right\ \ \left\{\begin{array}{l}x\geq -3\\x\leq 8\end{array}\right\ \ \ \ x\in [-3\ ;\ 8\ ]$