ANYWAYS... here's the answer if you don't want to do it
Simplify the original line: We get y=-(2/3)x+8
The line parallel to another line has the same slope.
Therefore, our line would be y=-(2/3)x+b, b being the y-intercept.
We also know that the line passes through point (12,-4). We can substitute the points into the line equation to solve b.
We get -4=-(2/3)*12+b => -4=-8+b => b=4
The line is y=-(2/3)x+4
Check it by using desmos.com