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Simplifying Cos(2x) + -2 = 3cosx Remove parenthesis around (2x) osC * 2x + -2 = 3cosx Reorder the terms for easier multiplication: 2osC * x + -2 = 3cosx Multiply osC * x 2osxC + -2 = 3cosx Reorder the terms: -2 + 2osxC = 3cosx Solving -2 + 2osxC = 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. -2 + -3cosx + 2osxC = 3cosx + -3cosx Combine like terms: 3cosx + -3cosx = 0 -2 + -3cosx + 2osxC = 0 Add '2' to each side of the equation. -2 + -3cosx + 2 + 2osxC = 0 + 2 Reorder the terms: -2 + 2 + -3cosx + 2osxC = 0 + 2 Combine like terms: -2 + 2 = 0 0 + -3cosx + 2osxC = 0 + 2 -3cosx + 2osxC = 0 + 2 Combine like terms: 0 + 2 = 2 -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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