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Simplifying Cos(2x) = 2 + -5cos(x) Remove parenthesis around (2x) osC * 2x = 2 + -5cos(x) Reorder the terms for easier multiplication: 2osC * x = 2 + -5cos(x) Multiply osC * x 2osxC = 2 + -5cos(x) Multiply cos * x 2osxC = 2 + -5cosx Solving 2osxC = 2 + -5cosx Solving for variable 'o'. Move all terms containing o to the left, all other terms to the right. Add '5cosx' to each side of the equation. 5cosx + 2osxC = 2 + -5cosx + 5cosx Combine like terms: -5cosx + 5cosx = 0 5cosx + 2osxC = 2 + 0 5cosx + 2osxC = 2 Reorder the terms: -2 + 5cosx + 2osxC = 2 + -2 Combine like terms: 2 + -2 = 0 -2 + 5cosx + 2osxC = 0 The solution to this equation could not be determined.
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