Question

Решите неравенство
-4(-4-х)>9

Answer 1

$- 4( - 4 - x) > 9 \\ - 4( -4 - x) - 9 > 0 \\ 4(x + 4) - 9 > 0 \\ 4x + 16 - 9 > 9 \\ 4x + 7 > 0 \\ 4x > 0 - 7 \\ 4x > - 7 \\ x > ( - 7) \div 4 \\ x > - 1.75$

Answer 2

-4(-4-х)>9

16+4x>9

4x>9-16

4x>-7

x>-7\4