cos(2x)=2-3cosx

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


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

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

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

Multiply cos * x
2cosx = 2 + -3cosx

Solving
2cosx = 2 + -3cosx

Solving for variable 'c'.

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

Add '3cosx' to each side of the equation.
2cosx + 3cosx = 2 + -3cosx + 3cosx

Combine like terms: 2cosx + 3cosx = 5cosx
5cosx = 2 + -3cosx + 3cosx

Combine like terms: -3cosx + 3cosx = 0
5cosx = 2 + 0
5cosx = 2

Divide each side by '5osx'.
c = 0.4o-1s-1x-1

Simplifying
c = 0.4o-1s-1x-1

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