75=y^2+3

Solution for 75=y^2+3 equation:

Simplifying
75 = y2 + 3

Reorder the terms:
75 = 3 + y2

Solving
75 = 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.
75 + -1y2 = 3 + y2 + -1y2

Combine like terms: y2 + -1y2 = 0
75 + -1y2 = 3 + 0
75 + -1y2 = 3

Add '-75' to each side of the equation.
75 + -75 + -1y2 = 3 + -75

Combine like terms: 75 + -75 = 0
0 + -1y2 = 3 + -75
-1y2 = 3 + -75

Combine like terms: 3 + -75 = -72
-1y2 = -72

Divide each side by '-1'.
y2 = 72

Simplifying
y2 = 72

Take the square root of each side:
y = {-8.485281374, 8.485281374}