x+3cosx=0

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Solution for x+3cosx=0 equation: 


Simplifying
x + 3cosx = 0

Reorder the terms:
3cosx + x = 0

Solving
3cosx + x = 0

Solving for variable 'c'.

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

Add '-1x' to each side of the equation.
3cosx + x + -1x = 0 + -1x

Combine like terms: x + -1x = 0
3cosx + 0 = 0 + -1x
3cosx = 0 + -1x
Remove the zero:
3cosx = -1x

Divide each side by '3osx'.
c = -0.3333333333o-1s-1

Simplifying
c = -0.3333333333o-1s-1

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