Question

Решите систему неравенств:

4х-1≤3х+6

7х-10>2х+10

A) [5;7)

B) (5;7)

C) (4;7]

D) [5;7]

E) решения нет​

Answer 1

Ответ:C) (4;7]

$\left \{ {{4x-1\leq 3x+6} \atop {7x-10>2x+10}} \right. \\\\\left \{ {{4x-3x\leq 6+1} \atop {7x-2x>10+10}} \right. \\\\\left \{ {{x\leq 7} \atop {5x>20}} \right. \\\\\left \{ {{x\leq 7} \atop {x>4}} \right. \\\\4<x\leq 7$

x∈(4;7]

Пошаговое объяснение: