Icess, the first thing is the point-slope form, y - y1 = m(x - x1).
So, we have y - (-2) = 7(x - 3). Simplify this to get your slope-intercept form, y = 7x - 23
Rearrange everything so that you have your equation in standard form, Ax + By = C, or 7x -y = 23.