Answer:
B. y = 3
Step-by-step explanation:
to solve the equation, you need to get y by itself. so, you have to add y to both sides, then subtract 3 from both sides. after that, you divide both sides by 2 and there's your answer.
it'll look like this:
y + 3 = -y + 9
2y + 3 = 9
2y = 6
y = 3
