3*cos(6x)-3*cos(3x)+5=0

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Solution for 3*cos(6x)-3*cos(3x)+5=0 equation:


Simplifying
3cos(6x) + -3cos(3x) + 5 = 0

Remove parenthesis around (6x)
3cos * 6x + -3cos(3x) + 5 = 0

Reorder the terms for easier multiplication:
3 * 6cos * x + -3cos(3x) + 5 = 0

Multiply 3 * 6
18cos * x + -3cos(3x) + 5 = 0

Multiply cos * x
18cosx + -3cos(3x) + 5 = 0

Remove parenthesis around (3x)
18cosx + -3cos * 3x + 5 = 0

Reorder the terms for easier multiplication:
18cosx + -3 * 3cos * x + 5 = 0

Multiply -3 * 3
18cosx + -9cos * x + 5 = 0

Multiply cos * x
18cosx + -9cosx + 5 = 0

Reorder the terms:
5 + 18cosx + -9cosx = 0

Combine like terms: 18cosx + -9cosx = 9cosx
5 + 9cosx = 0

Solving
5 + 9cosx = 0

Solving for variable 'c'.

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

Add '-5' to each side of the equation.
5 + -5 + 9cosx = 0 + -5

Combine like terms: 5 + -5 = 0
0 + 9cosx = 0 + -5
9cosx = 0 + -5

Combine like terms: 0 + -5 = -5
9cosx = -5

Divide each side by '9osx'.
c = -0.5555555556o-1s-1x-1

Simplifying
c = -0.5555555556o-1s-1x-1

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