c(x)=300+31x-3.90x^2

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Solution for c(x)=300+31x-3.90x^2 equation: 


Simplifying
c(x) = 300 + 31x + -3.90x2

Multiply c * x
cx = 300 + 31x + -3.90x2

Solving
cx = 300 + 31x + -3.90x2

Solving for variable 'c'.

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

Divide each side by 'x'.
c = 300x-1 + 31 + -3.90x

Simplifying
c = 300x-1 + 31 + -3.90x

Reorder the terms:
c = 31 + 300x-1 + -3.90x

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