cos(2x)+5cos(x)=2

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Solution for cos(2x)+5cos(x)=2 equation: 


Simplifying
cos(2x) + 5cos(x) = 2

Remove parenthesis around (2x)
cos * 2x + 5cos(x) = 2

Reorder the terms for easier multiplication:
2cos * x + 5cos(x) = 2

Multiply cos * x
2cosx + 5cos(x) = 2

Multiply cos * x
2cosx + 5cosx = 2

Combine like terms: 2cosx + 5cosx = 7cosx
7cosx = 2

Solving
7cosx = 2

Solving for variable 'c'.

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

Divide each side by '7osx'.
c = 0.2857142857o-1s-1x-1

Simplifying
c = 0.2857142857o-1s-1x-1

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