You can multiply everything by 7 to make things simpler.
3x + 5 = 4
3x = -1
x = -1/3
Did you just state the answer? Because it seems like you just answered the question for us.
Answer:
-1/7
Hope that helped
Use the given slope and point and put it into the point-slope formula
y - y1 = m ( x - x1 )
1 is your x value (x1) and 9 is your y value (y1). M = -3
In point slope form, the answer is
y - 9 = -3 ( x - 1 )