r^2-y^2=

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Solution for r^2-y^2= equation: 


Simplifying
r2 + -1y2 = 0

Solving
r2 + -1y2 = 0

Solving for variable 'r'.

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

Add 'y2' to each side of the equation.
r2 + -1y2 + y2 = 0 + y2

Combine like terms: -1y2 + y2 = 0
r2 + 0 = 0 + y2
r2 = 0 + y2
Remove the zero:
r2 = y2

Simplifying
r2 = y2

Take the square root of each side:
r = {-1y, y}

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