Question 408885
{{{-20<=3t-2<1}}}.......isolate the variable.... adding 2 to each expression, we get:

{{{-20+2<=3t-2+2<1+2}}}


{{{-18<=3t<3}}}.........divide by 3

{{{-18/3<=3t/3<3/3}}}

{{{-6<=t<1}}}.......the solution is all real numbers that are greater or equal to {{{-6}}}  and less than {{{1}}}


check:

{{{t=-6}}}

{{{-20<=3(-6)-2<1}}}

{{{-20<=-18<1}}}