Answer:
y=2x-1/3
Step-by-step explanation:
Well if you're looking to simplify the equation:
3 ( 2x + 7 ) - 1 = 3y + 21
6x + 21 - 1 = 3y + 21
6x + 20 = 3y + 21
6x + 20 - 21 = 3y
6x - 1 = 3y
2x - (1/3) = y
