0=9x^2-49a^2

Solution for 0=9x^2-49a^2 equation:

Simplifying
0 = 9x2 + -49a2

Reorder the terms:
0 = -49a2 + 9x2

Solving
0 = -49a2 + 9x2

Solving for variable 'a'.

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

Add '49a2' to each side of the equation.
0 + 49a2 = -49a2 + 49a2 + 9x2
Remove the zero:
49a2 = -49a2 + 49a2 + 9x2

Combine like terms: -49a2 + 49a2 = 0
49a2 = 0 + 9x2
49a2 = 9x2

Divide each side by '49'.
a2 = 0.1836734694x2

Simplifying
a2 = 0.1836734694x2

Take the square root of each side:
a = {-0.428571429x, 0.428571429x}