Question 1180733
If {{{7x-3}}} positive then {{{7x-3<=18}}}
{{{7x<=21}}}
{{{x<=3}}}


If {{{7x-3}}} not positive then {{{-(7x-3)<=18}}}
{{{-7x+3<=18}}}
{{{-7x<=15}}}
{{{x>=-15/7}}}


{{{highlight(-15/7<=x<=3)}}}