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Simplifying cos * 2x + -1cosx + -4 = 0 Reorder the terms for easier multiplication: 2cos * x + -1cosx + -4 = 0 Multiply cos * x 2cosx + -1cosx + -4 = 0 Reorder the terms: -4 + 2cosx + -1cosx = 0 Combine like terms: 2cosx + -1cosx = 1cosx -4 + 1cosx = 0 Solving -4 + 1cosx = 0 Solving for variable 'c'. Move all terms containing c to the left, all other terms to the right. Add '4' to each side of the equation. -4 + 4 + 1cosx = 0 + 4 Combine like terms: -4 + 4 = 0 0 + 1cosx = 0 + 4 1cosx = 0 + 4 Combine like terms: 0 + 4 = 4 1cosx = 4 Divide each side by '1osx'. c = 4o-1s-1x-1 Simplifying c = 4o-1s-1x-1
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