4cos(x)-cos(2x)+3x=0

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Solution for 4cos(x)-cos(2x)+3x=0 equation:


Simplifying
4cos(x) + -1cos(2x) + 3x = 0

Multiply cos * x
4cosx + -1cos(2x) + 3x = 0

Remove parenthesis around (2x)
4cosx + -1cos * 2x + 3x = 0

Reorder the terms for easier multiplication:
4cosx + -1 * 2cos * x + 3x = 0

Multiply -1 * 2
4cosx + -2cos * x + 3x = 0

Multiply cos * x
4cosx + -2cosx + 3x = 0

Combine like terms: 4cosx + -2cosx = 2cosx
2cosx + 3x = 0

Solving
2cosx + 3x = 0

Solving for variable 'c'.

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

Add '-3x' to each side of the equation.
2cosx + 3x + -3x = 0 + -3x

Combine like terms: 3x + -3x = 0
2cosx + 0 = 0 + -3x
2cosx = 0 + -3x
Remove the zero:
2cosx = -3x

Divide each side by '2osx'.
c = -1.5o-1s-1

Simplifying
c = -1.5o-1s-1

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