f(x)=3-4cos(x+1)

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Solution for f(x)=3-4cos(x+1) equation: 


Simplifying
f(x) = 3 + -4cos(x + 1)

Multiply f * x
fx = 3 + -4cos(x + 1)

Reorder the terms:
fx = 3 + -4cos(1 + x)
fx = 3 + (1 * -4cos + x * -4cos)
fx = 3 + (-4cos + -4cosx)

Solving
fx = 3 + -4cos + -4cosx

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 + -4cosx-1 + -4cos

Simplifying
f = 3x-1 + -4cosx-1 + -4cos

Reorder the terms:
f = -4cos + -4cosx-1 + 3x-1

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