Question 105709
Let's go step by step. 
Bring all the knowns on one side and unknowns(t) on the other. 
{{{3t-12>5t+2}}}
{{{cross(3t)-cross(3t)-12>5t-3t+2}}} Add the additive inverse of 3t to both sides (-3t).
{{{-12>2t+2}}}Simplify.
{{{-12-2>2t+cross(2)-cross(2)}}}Add the additive inverse of 2 to both sides (-2).
{{{-14>2t}}}Simplify.
{{{-14/2>2t/2}}}Multiply by the multiplicative inverse of 2 (1/2).
{{{-7>t}}} or
{{{t<-7}}}