Question 20808
2(6d+3)=18-3(16-3d)
12d+6=18-48+9d
12d+6=-30+9d   <--subtract 9d from both sides
(12d+6)-9d=(-30+9d)-9d
3d+6=-30   <--subtract 6 from both sides
(3d+6)-6=-30-6
3d=-36   <--divide both sides by 3
{{{3d/3}}}={{{-36/3}}}
d=-12