Answer:
8x -y = 67
Step-by-step explanation:
When given a point and slope, it is useful to start with the point-slope form of the equation of a line:
y -k = m(x -h) . . . . . for a line with slope m through point (h, k)
Filling in your numbers, this is ...
y +3 = 8(x -8)
8x -64 -y -3 = 0 . . . . . . subtract (y+3)
8x -y = 67 . . . . . . . . . . . add 67 to get standard form
