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Simplifying -1cos(2x) + x + 2 = 0 Remove parenthesis around (2x) -1cos * 2x + x + 2 = 0 Reorder the terms for easier multiplication: -1 * 2cos * x + x + 2 = 0 Multiply -1 * 2 -2cos * x + x + 2 = 0 Multiply cos * x -2cosx + x + 2 = 0 Reorder the terms: 2 + -2cosx + x = 0 Solving 2 + -2cosx + x = 0 Solving for variable 'c'. Move all terms containing c to the left, all other terms to the right. Add '-2' to each side of the equation. 2 + -2cosx + -2 + x = 0 + -2 Reorder the terms: 2 + -2 + -2cosx + x = 0 + -2 Combine like terms: 2 + -2 = 0 0 + -2cosx + x = 0 + -2 -2cosx + x = 0 + -2 Combine like terms: 0 + -2 = -2 -2cosx + x = -2 Add '-1x' to each side of the equation. -2cosx + x + -1x = -2 + -1x Combine like terms: x + -1x = 0 -2cosx + 0 = -2 + -1x -2cosx = -2 + -1x Divide each side by '-2osx'. c = o-1s-1x-1 + 0.5o-1s-1 Simplifying c = o-1s-1x-1 + 0.5o-1s-1 Reorder the terms: c = 0.5o-1s-1 + o-1s-1x-1
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