Question 271454
for the sides of an equation to stay equal; whatever you do to one side, you must do to the other side


also, dividing a squared quantity by 2 is actually dividing the value by 4 (because of the squaring)


you said you squared both sides, when you actually took the square root


(2y + 1/2)^2 = 4/25


(y + 1/4)^2 = 1/25


y + 1/4 = ±1/5


y = -1/20 ___ and ___ y = -9/20