0=100A^2-49B^2

Solution for 0=100A^2-49B^2 equation:

Simplifying
0 = 100A2 + -49B2

Solving
0 = 100A2 + -49B2

Solving for variable 'A'.

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

Add '-100A2' to each side of the equation.
0 + -100A2 = 100A2 + -100A2 + -49B2
Remove the zero:
-100A2 = 100A2 + -100A2 + -49B2

Combine like terms: 100A2 + -100A2 = 0
-100A2 = 0 + -49B2
-100A2 = -49B2

Divide each side by '-100'.
A2 = 0.49B2

Simplifying
A2 = 0.49B2

Take the square root of each side:
A = {-0.7B, 0.7B}