No can do. Nobody can. You cannot write the equation of a line. You can write an equation of a line.
The slopes of parallel lines are identical, that is to say:
So, put your equation into slope-intercept form by solving for . Here all you have to do is add to both sides. Once the given equation is in slope-intercept form, that is: , you can determine the slope just by examining the coefficient on .
Now that you know the slope of the given line, you also know the slope of the desired line.
Use the Point-Slope Form:
Where are the coordinates of the given point and is the slope determined from the given equation.