Question 102643
first solve this:

{{{x + 3y >= -2}}}
{{{3y >= -x -2}}}
{{{y >= -x/3 - 2/3}}}

to graf it, you will need two points:

if   {{{x = 0 }}} => {{{ y = -2/3}}}
     {{{x = -2 }}}    {{{y = 0}}}       

find these two points on the graph, and draw the line
everything for {{{x >= -2}}} shade; start from the point (x = -2), go to the right, and color dark (or shade it).

I think the following sample will help: from {{{x=-2}}} to the right shade the area between the x -axis and the graph from 

*[invoke describe_linear_equation 1, 3, -2]