#### Answer

$$2$$

#### Work Step by Step

The equation for the line given by
$$6x-3y=12$$
can be rewritten as
$$3y=6x-12$$
or
$$y=2x-4$$
The equation of a line in slope-intercept form is
$$y=mx+b$$
where $m$ is the slope and $b$ is the y-intercept.
So, for this line and any lines parallel to it, the slope is
$$m=2$$