54x^2-6u^2=0

Solution for 54x^2-6u^2=0 equation:

Simplifying
54x2 + -6u2 = 0

Reorder the terms:
-6u2 + 54x2 = 0

Solving
-6u2 + 54x2 = 0

Solving for variable 'u'.

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

Add '-54x2' to each side of the equation.
-6u2 + 54x2 + -54x2 = 0 + -54x2

Combine like terms: 54x2 + -54x2 = 0
-6u2 + 0 = 0 + -54x2
-6u2 = 0 + -54x2
Remove the zero:
-6u2 = -54x2

Divide each side by '-6'.
u2 = 9x2

Simplifying
u2 = 9x2

Take the square root of each side:
u = {-3x, 3x}