8+4cos(2x)=12cosx

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Solution for 8+4cos(2x)=12cosx equation:


Simplifying
8 + 4cos(2x) = 12cosx

Remove parenthesis around (2x)
8 + 4cos * 2x = 12cosx

Reorder the terms for easier multiplication:
8 + 4 * 2cos * x = 12cosx

Multiply 4 * 2
8 + 8cos * x = 12cosx

Multiply cos * x
8 + 8cosx = 12cosx

Solving
8 + 8cosx = 12cosx

Solving for variable 'c'.

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

Add '-12cosx' to each side of the equation.
8 + 8cosx + -12cosx = 12cosx + -12cosx

Combine like terms: 8cosx + -12cosx = -4cosx
8 + -4cosx = 12cosx + -12cosx

Combine like terms: 12cosx + -12cosx = 0
8 + -4cosx = 0

Add '-8' to each side of the equation.
8 + -8 + -4cosx = 0 + -8

Combine like terms: 8 + -8 = 0
0 + -4cosx = 0 + -8
-4cosx = 0 + -8

Combine like terms: 0 + -8 = -8
-4cosx = -8

Divide each side by '-4osx'.
c = 2o-1s-1x-1

Simplifying
c = 2o-1s-1x-1

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