f(x)=3cos(2x)-3

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


Simplifying
f(x) = 3cos(2x) + -3

Multiply f * x
fx = 3cos(2x) + -3

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

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

Multiply 3 * 2
fx = 6cos * x + -3

Multiply cos * x
fx = 6cosx + -3

Reorder the terms:
fx = -3 + 6cosx

Solving
fx = -3 + 6cosx

Solving for variable 'f'.

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

Divide each side by 'x'.
f = -3x-1 + 6cos

Simplifying
f = -3x-1 + 6cos

Reorder the terms:
f = 6cos + -3x-1

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