cos(4x)=-2.5

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Solution for cos(4x)=-2.5 equation: 


Simplifying
cos(4x) = -2.5

Remove parenthesis around (4x)
cos * 4x = -2.5

Reorder the terms for easier multiplication:
4cos * x = -2.5

Multiply cos * x
4cosx = -2.5

Solving
4cosx = -2.5

Solving for variable 'c'.

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

Divide each side by '4osx'.
c = -0.625o-1s-1x-1

Simplifying
c = -0.625o-1s-1x-1

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