12+6cos(2x)=18cosx

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Solution for 12+6cos(2x)=18cosx equation:


Simplifying
12 + 6cos(2x) = 18cosx

Remove parenthesis around (2x)
12 + 6cos * 2x = 18cosx

Reorder the terms for easier multiplication:
12 + 6 * 2cos * x = 18cosx

Multiply 6 * 2
12 + 12cos * x = 18cosx

Multiply cos * x
12 + 12cosx = 18cosx

Solving
12 + 12cosx = 18cosx

Solving for variable 'c'.

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

Add '-18cosx' to each side of the equation.
12 + 12cosx + -18cosx = 18cosx + -18cosx

Combine like terms: 12cosx + -18cosx = -6cosx
12 + -6cosx = 18cosx + -18cosx

Combine like terms: 18cosx + -18cosx = 0
12 + -6cosx = 0

Add '-12' to each side of the equation.
12 + -12 + -6cosx = 0 + -12

Combine like terms: 12 + -12 = 0
0 + -6cosx = 0 + -12
-6cosx = 0 + -12

Combine like terms: 0 + -12 = -12
-6cosx = -12

Divide each side by '-6osx'.
c = 2o-1s-1x-1

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

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