16a^2-81y^2=0

Solution for 16a^2-81y^2=0 equation:

Simplifying
16a2 + -81y2 = 0

Solving
16a2 + -81y2 = 0

Solving for variable 'a'.

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

Add '81y2' to each side of the equation.
16a2 + -81y2 + 81y2 = 0 + 81y2

Combine like terms: -81y2 + 81y2 = 0
16a2 + 0 = 0 + 81y2
16a2 = 0 + 81y2
Remove the zero:
16a2 = 81y2

Divide each side by '16'.
a2 = 5.0625y2

Simplifying
a2 = 5.0625y2

Take the square root of each side:
a = {-2.25y, 2.25y}