2cos^2x=12-21x

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Solution for 2cos^2x=12-21x equation: 


Simplifying
2cos2x = 12 + -21x

Solving
2cos2x = 12 + -21x

Solving for variable 'c'.

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

Divide each side by '2os2x'.
c = 6o-1s-2x-1 + -10.5o-1s-2

Simplifying
c = 6o-1s-2x-1 + -10.5o-1s-2

Reorder the terms:
c = -10.5o-1s-2 + 6o-1s-2x-1

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