25v^2-81p^2=0

Solution for 25v^2-81p^2=0 equation:

Simplifying
25v2 + -81p2 = 0

Reorder the terms:
-81p2 + 25v2 = 0

Solving
-81p2 + 25v2 = 0

Solving for variable 'p'.

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

Add '-25v2' to each side of the equation.
-81p2 + 25v2 + -25v2 = 0 + -25v2

Combine like terms: 25v2 + -25v2 = 0
-81p2 + 0 = 0 + -25v2
-81p2 = 0 + -25v2
Remove the zero:
-81p2 = -25v2

Divide each side by '-81'.
p2 = 0.3086419753v2

Simplifying
p2 = 0.3086419753v2

Take the square root of each side:
p = {-0.555555556v, 0.555555556v}