No.
If you add them up you DO NOT GET 
According to mathematics, it equals to 
.
Answer: y=2x+3
Step-by-step explanation:
y=mx+b
slope: 2
Y-intercept: 3
I'm sorry if this is wrong!
Slope of the given line = 4
slope of the req. line = 4
equation of the line
y - y1 = m(x - x1)
y + 8 = 4(x - 3)
y + 8 = 4x - 12
4x - y - 12 - 8 = 0
4x - y - 20 = 0
That's an expression, so the only thing you can do is simplify it, but that already looks simplified.
