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Simplifying (x + -3) = cos(2x + 6) Reorder the terms: (-3 + x) = cos(2x + 6) Remove parenthesis around (-3 + x) -3 + x = cos(2x + 6) Reorder the terms: -3 + x = cos(6 + 2x) -3 + x = (6 * cos + 2x * cos) -3 + x = (6cos + 2cosx) Solving -3 + x = 6cos + 2cosx Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-2cosx' to each side of the equation. -3 + -2cosx + x = 6cos + 2cosx + -2cosx Combine like terms: 2cosx + -2cosx = 0 -3 + -2cosx + x = 6cos + 0 -3 + -2cosx + x = 6cos Add '3' to each side of the equation. -3 + -2cosx + 3 + x = 3 + 6cos Reorder the terms: -3 + 3 + -2cosx + x = 3 + 6cos Combine like terms: -3 + 3 = 0 0 + -2cosx + x = 3 + 6cos -2cosx + x = 3 + 6cos Reorder the terms: -3 + -6cos + -2cosx + x = 3 + 6cos + -3 + -6cos Reorder the terms: -3 + -6cos + -2cosx + x = 3 + -3 + 6cos + -6cos Combine like terms: 3 + -3 = 0 -3 + -6cos + -2cosx + x = 0 + 6cos + -6cos -3 + -6cos + -2cosx + x = 6cos + -6cos Combine like terms: 6cos + -6cos = 0 -3 + -6cos + -2cosx + x = 0 The solution to this equation could not be determined.
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