20cos(-x-2)=3

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Solution for 20cos(-x-2)=3 equation:


Simplifying
20cos(-1x + -2) = 3

Reorder the terms:
20cos(-2 + -1x) = 3
(-2 * 20cos + -1x * 20cos) = 3
(-40cos + -20cosx) = 3

Solving
-40cos + -20cosx = 3

Solving for variable 'c'.

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

Reorder the terms:
-3 + -40cos + -20cosx = 3 + -3

Combine like terms: 3 + -3 = 0
-3 + -40cos + -20cosx = 0

Factor out the Greatest Common Factor (GCF), '-1'.
-1(3 + 40cos + 20cosx) = 0

Ignore the factor -1.

Subproblem 1

Set the factor '(3 + 40cos + 20cosx)' equal to zero and attempt to solve: Simplifying 3 + 40cos + 20cosx = 0 Solving 3 + 40cos + 20cosx = 0 Move all terms containing c to the left, all other terms to the right. Add '-3' to each side of the equation. 3 + 40cos + -3 + 20cosx = 0 + -3 Reorder the terms: 3 + -3 + 40cos + 20cosx = 0 + -3 Combine like terms: 3 + -3 = 0 0 + 40cos + 20cosx = 0 + -3 40cos + 20cosx = 0 + -3 Combine like terms: 0 + -3 = -3 40cos + 20cosx = -3 The solution to this equation could not be determined. This subproblem is being ignored because a solution could not be determined. The solution to this equation could not be determined.

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