Решите неравенство . 5x-21>17-(x-4)

Question

Решите неравенство .
5x-21>17-(x-4)

Comments

3x в 2 -2x-1>0

Answer 1

5х-21>17-х+4
5х+х>17+4+21
6х>42
х>7

Answer 2

5x -21>17-x+4
5x+x>17+4+21
6x>42
x>7
(7,+бесконечности)