Question 1006732
If that one is a multi-variable linear equation, then there are no restrictions on the other variables, or if for just two dimensions, no restriction on x.  


{{{4y=-12}}}
{{{4y/4=-12/4}}}
{{{y=-3}}}-----------this is just a horizontal line at y=-3, and for all values of x.  This had NO x-axis intercept.