Question

решите неравенство |1-2x|<5

Answer 1

$|1-2x| textless 5$

$left { {{ 1-2x textless 5} atop { 1-2x textgreater -5}} right. Rightarrow left { {{ -2x textless 4} atop { -2x textgreater -6}} right. Rightarrow left { {{ x textgreater -2} atop { x textless 3}} right.$

Ответ: 
$-2 textless x textless 3$

Answer 2

спс