rx^2+3x=k

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Solution for rx^2+3x=k equation: 


Simplifying
rx2 + 3x = k

Solving
rx2 + 3x = k

Solving for variable 'r'.

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

Add '-3x' to each side of the equation.
rx2 + 3x + -3x = k + -3x

Combine like terms: 3x + -3x = 0
rx2 + 0 = k + -3x
rx2 = k + -3x

Divide each side by 'x2'.
r = kx-2 + -3x-1

Simplifying
r = kx-2 + -3x-1

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