Question

7x-3(x-6) > 5x+9
12x - 2(3 - 2x)< 2(x-2)​

Answer 1

Ответ:

$7x - 3(x - 6) > 5x + 9 \\ 7x - 3x + 6 > 5x + 9 \\ 7x - 3x - 5x > 9 - 6 \\ - x > 3 \\ x < - 3$

$12x - 2(3 - 2x) < 2(x - 2) \\ 12x - 6 + 4x < 2x - 4 \\ 12x + 4x - 2x < - 4 + 6 \\ 14x < 2 \\ x < 2 \div 14 \\ x < \frac{1}{7}$