4y^2-39=0

Solution for 4y^2-39=0 equation:

Simplifying
4y2 + -39 = 0

Reorder the terms:
-39 + 4y2 = 0

Solving
-39 + 4y2 = 0

Solving for variable 'y'.

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

Add '39' to each side of the equation.
-39 + 39 + 4y2 = 0 + 39

Combine like terms: -39 + 39 = 0
0 + 4y2 = 0 + 39
4y2 = 0 + 39

Combine like terms: 0 + 39 = 39
4y2 = 39

Divide each side by '4'.
y2 = 9.75

Simplifying
y2 = 9.75

Take the square root of each side:
y = {-3.122498999, 3.122498999}