r(x)=270x-45x^2

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Solution for r(x)=270x-45x^2 equation: 


Simplifying
r(x) = 270x + -45x2

Multiply r * x
rx = 270x + -45x2

Solving
rx = 270x + -45x2

Solving for variable 'r'.

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

Divide each side by 'x'.
r = 270 + -45x

Simplifying
r = 270 + -45x

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