Question

решите срочно
|х+6|+4х=5

Answer 1

|x + 6| + 4x = 5
|x + 6| = 5 - 4x
5 - 4x ≥ 0   ⇒  - 4x ≥ - 5    ⇒ x ≤ 1,25

$\left \{ {{x+6=5-4x} \atop {x+6=4x-5}} \right. \\\\ \left \{ {{5x=-1} \atop {-3x=-11}} \right. \\\\ \left \{ {{x _{1} =- \frac{1}{5} } \atop {x _{2} =3 \frac{2}{3} }} \right.$
x₂ - не подходит
Ответ: - 1/5