-------- Point-slope form
-------- Substituting , and 2 for m (slope), in point-slope formula
y - 1 = 2(x + 3)
y - 1 = 2x + 6
y = 2x + 6 + 1
By the way, you're given all that you need to find the equation. No need to calculate anything.
It's that simple.....nothing COMPLEX!!