The first thing we have to know is that parallel lines have the same slope. The slope can be identified in the general equation of the line:

Taking that into account, we identify the slope of the given line

Now we replace the slope in the general equation

With the given point we can find the intercept value of y and thus be able to have the equation of our parallel line

The equation of the parallel line that passes through the point (4, -7) is

using the slash it would be: y = 2/3x-13/3