Question

Розв’яжіть систему нерівностей:

Answer 1

Ответ:

$\left \{ {{3x-15<15} \atop {6x-2\geq10 }} \right. \\\\\left \{ {{3x-15-15<0} \atop {6x-2-10\geq 0}} \right. \\\\\left \{ {{3x-30<0} \atop {6x-12\geq0 }} \right. \\\left \{ {{3x<30} \atop {6x\geq12 }} \\\left \{ {{x<10} \atop {x\geq 2}} \right. \right.$

$2\leq x<10$

⇔⇔⇔⇔⇔⇔⇔⇔⇔⇔⇔

x∈[2;10)