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Simplifying Cos(2x) = 3cosx + -2 Remove parenthesis around (2x) osC * 2x = 3cosx + -2 Reorder the terms for easier multiplication: 2osC * x = 3cosx + -2 Multiply osC * x 2osxC = 3cosx + -2 Reorder the terms: 2osxC = -2 + 3cosx Solving 2osxC = -2 + 3cosx Solving for variable 'o'. Move all terms containing o to the left, all other terms to the right. Add '-3cosx' to each side of the equation. -3cosx + 2osxC = -2 + 3cosx + -3cosx Combine like terms: 3cosx + -3cosx = 0 -3cosx + 2osxC = -2 + 0 -3cosx + 2osxC = -2 Reorder the terms: 2 + -3cosx + 2osxC = -2 + 2 Combine like terms: -2 + 2 = 0 2 + -3cosx + 2osxC = 0 The solution to this equation could not be determined.
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