F(x)=4cos(x)

Solution for F(x)=4cos(x) equation:

Simplifying
F(x) = 4cos(x)

Multiply F * x
xF = 4cos(x)

Multiply cos * x
xF = 4cosx

Solving
xF = 4cosx

Solving for variable 'x'.

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

Add '-4cosx' to each side of the equation.
-4cosx + xF = 4cosx + -4cosx

Combine like terms: 4cosx + -4cosx = 0
-4cosx + xF = 0

Factor out the Greatest Common Factor (GCF), 'x'.
x(-4cos + F) = 0

Subproblem 1
Set the factor 'x' equal to zero and attempt to solve:

Simplifying
x = 0

Solving
x = 0

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

Simplifying
x = 0
Subproblem 2
Set the factor '(-4cos + F)' equal to zero and attempt to solve:

Simplifying
-4cos + F = 0

Reorder the terms:
F + -4cos = 0

Solving
F + -4cos = 0

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

Add '-1F' to each side of the equation.
F + -1F + -4cos = 0 + -1F

Combine like terms: F + -1F = 0
0 + -4cos = 0 + -1F
-4cos = 0 + -1F
Remove the zero:
-4cos = -1F

Add '4cos' to each side of the equation.
-4cos + 4cos = -1F + 4cos

Combine like terms: -4cos + 4cos = 0
0 = -1F + 4cos

Simplifying
0 = -1F + 4cos

The solution to this equation could not be determined.

This subproblem is being ignored because a solution could not be determined.
Solution
x = {0}