3cos(3x)=-4

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Solution for 3cos(3x)=-4 equation: 


Simplifying
3cos(3x) = -4

Remove parenthesis around (3x)
3cos * 3x = -4

Reorder the terms for easier multiplication:
3 * 3cos * x = -4

Multiply 3 * 3
9cos * x = -4

Multiply cos * x
9cosx = -4

Solving
9cosx = -4

Solving for variable 'c'.

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

Divide each side by '9osx'.
c = -0.4444444444o-1s-1x-1

Simplifying
c = -0.4444444444o-1s-1x-1

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