2cos(3x)=-1

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Solution for 2cos(3x)=-1 equation: 


Simplifying
2cos(3x) = -1

Remove parenthesis around (3x)
2cos * 3x = -1

Reorder the terms for easier multiplication:
2 * 3cos * x = -1

Multiply 2 * 3
6cos * x = -1

Multiply cos * x
6cosx = -1

Solving
6cosx = -1

Solving for variable 'c'.

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

Divide each side by '6osx'.
c = -0.1666666667o-1s-1x-1

Simplifying
c = -0.1666666667o-1s-1x-1

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