Question 118741


{{{-d/3 < 6 }}}......multiply both sides by {{{3}}}

{{{(-d/3)3 < 6*3 }}}......

{{{(-d/cross(3))cross(3) < 18 }}}......

{{{-d < 18 }}}......divide both sides by {{{-1}}}....(recall: sign will change)

{{{-d(-1) < 18(-1) }}}......

{{{d > -18}}}......