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Simplifying 2 + cos * 2x = 3cosx Reorder the terms for easier multiplication: 2 + 2cos * x = 3cosx Multiply cos * x 2 + 2cosx = 3cosx Solving 2 + 2cosx = 3cosx Solving for variable 'c'. Move all terms containing c to the left, all other terms to the right. Add '-3cosx' to each side of the equation. 2 + 2cosx + -3cosx = 3cosx + -3cosx Combine like terms: 2cosx + -3cosx = -1cosx 2 + -1cosx = 3cosx + -3cosx Combine like terms: 3cosx + -3cosx = 0 2 + -1cosx = 0 Add '-2' to each side of the equation. 2 + -2 + -1cosx = 0 + -2 Combine like terms: 2 + -2 = 0 0 + -1cosx = 0 + -2 -1cosx = 0 + -2 Combine like terms: 0 + -2 = -2 -1cosx = -2 Divide each side by '-1osx'. c = 2o-1s-1x-1 Simplifying c = 2o-1s-1x-1
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