3=y^2

Solution for 3=y^2 equation:

Simplifying
3 = y2

Solving
3 = y2

Solving for variable 'y'.

Move all terms containing y to the left, all other terms to the right.

Add '-1y2' to each side of the equation.
3 + -1y2 = y2 + -1y2

Combine like terms: y2 + -1y2 = 0
3 + -1y2 = 0

Add '-3' to each side of the equation.
3 + -3 + -1y2 = 0 + -3

Combine like terms: 3 + -3 = 0
0 + -1y2 = 0 + -3
-1y2 = 0 + -3

Combine like terms: 0 + -3 = -3
-1y2 = -3

Divide each side by '-1'.
y2 = 3

Simplifying
y2 = 3

Take the square root of each side:
y = {-1.732050808, 1.732050808}