Hey there!
123y + 127 = 540
Subtract 127 to both sides
123y + 127 - 127 = 540 - 127
Simplify it
123y = 540 - 127
123y = 413
Divide 123 to both sides
123y/123 = 413/123
Simplify it
y = 413/123
We cannot simplify it anymore, so
y ≈ 413/123
Therefore, your answer should be:
y = 413/123
Good luck on your assignment & enjoy your day!
~Amphitrite1040:)