6cos(2x)=18cos(x)-12

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


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

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

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

Multiply 6 * 2
12cos * x = 18cos(x) + -12

Multiply cos * x
12cosx = 18cos(x) + -12

Multiply cos * x
12cosx = 18cosx + -12

Reorder the terms:
12cosx = -12 + 18cosx

Solving
12cosx = -12 + 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.
12cosx + -18cosx = -12 + 18cosx + -18cosx

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

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

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

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

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