Answer:
Distributive is the correct answer.
Solve for y
x+2y=6
Add (-x) to both sides:
x + 2y + (-x) = 6 + (-x)
Simplify:
2y = 6 - x
Divide both sides by 2
2y/2 = (6-x) / 2
2y/2 = 6/2 - x/2
y = 3 - x/2