Hello from MrBillDoesMath!
Answer:
y = 2x - 3
Discussion:
2x - y = 3 => add "y" to both sides
2x - y + y = 3 + y => as -y+y = 0
2x = 3 + y => subtract 3 from each side of the equation
2x-3 = y
Thank you,
MrB