I would like to know how to do this problem

Answer:
y = 1/3 x + 7
Step-by-step explanation:
Parallel line has same slope
x - 3y = 21
y = 1/3 x -7 slope = 1/3
pass point (-6 , 5)
y = mx + b m: slope b: y intercept y = 5 x = -6
b = y - mx = 5 - (1/3 x (-6)) = 7
equation: y = 1/3 x + 7