Question

Решите,нужен только ответ
{4х-12 больше либо равно 0
{х-6<1

Answer 1

$left { {{4x-12 geq 0} atop {x-6<1} right. Rightarrow left { {{4x geq 12} atop {x<1+6} right. RightarrowRightarrow left { {{x geq 3} atop {x<7} right. Rightarrow$
                           ////////////////////////////////////////////////////////////////////////
--------------------[3]----------------------(7)-----------------------
   \\\\\\\\\\\\\\\\\\\\\\\\\\\\

Ответ. [3;7)