9c^2-9d^2=0

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Solution for 9c^2-9d^2=0 equation: 


Simplifying
9c2 + -9d2 = 0

Solving
9c2 + -9d2 = 0

Solving for variable 'c'.

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

Add '9d2' to each side of the equation.
9c2 + -9d2 + 9d2 = 0 + 9d2

Combine like terms: -9d2 + 9d2 = 0
9c2 + 0 = 0 + 9d2
9c2 = 0 + 9d2
Remove the zero:
9c2 = 9d2

Divide each side by '9'.
c2 = d2

Simplifying
c2 = d2

Take the square root of each side:
c = {-1d, d}

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