To find the slope of this linear equation, we can rewrite this into the slope-intercept form, as follows:

In the slope-intercept form, we can say that the slope for the line is m = -2.
Therefore, the slope for this line is m = -2.
We have to remember that the slope-intercept form of the line is:

Where m is the slope of the line and b is the y-intercept of the line.