Question

Помогите пожалуйста
2, 4, 6

Answer 1

2)

$3|x| + 1 = |x| + 7 => 2|x| = 6 => |x| = 3 => x_1 = 3, x_2 = -3$

4)

$|2x - 3| = 5:\\2x - 3 = 5 => 2x = 8 => x_1 = 4\\2x - 3 = -5 => 2x = -2 => x_2 = -1$

6)

$|x - 2| = x-2 => x-2 \geq 0 => x \geq 2\\\left \{ {{x - 2 = x-2} \atop { x \geq 2}} \right.$

X - любое число, которое больше или равно двум