16x^2-y^2-9x^2=0

Solution for 16x^2-y^2-9x^2=0 equation:

Simplifying
16x2 + -1y2 + -9x2 = 0

Reorder the terms:
16x2 + -9x2 + -1y2 = 0

Combine like terms: 16x2 + -9x2 = 7x2
7x2 + -1y2 = 0

Solving
7x2 + -1y2 = 0

Solving for variable 'x'.

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

Add 'y2' to each side of the equation.
7x2 + -1y2 + y2 = 0 + y2

Combine like terms: -1y2 + y2 = 0
7x2 + 0 = 0 + y2
7x2 = 0 + y2
Remove the zero:
7x2 = y2

Divide each side by '7'.
x2 = 0.1428571429y2

Simplifying
x2 = 0.1428571429y2

Take the square root of each side:
x = {-0.377964473y, 0.377964473y}