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Simplifying 6cosx2 + -7cosx + -13 = 0 Reorder the terms: -13 + -7cosx + 6cosx2 = 0 Solving -13 + -7cosx + 6cosx2 = 0 Solving for variable 'c'. Move all terms containing c to the left, all other terms to the right. Add '13' to each side of the equation. -13 + -7cosx + 13 + 6cosx2 = 0 + 13 Reorder the terms: -13 + 13 + -7cosx + 6cosx2 = 0 + 13 Combine like terms: -13 + 13 = 0 0 + -7cosx + 6cosx2 = 0 + 13 -7cosx + 6cosx2 = 0 + 13 Combine like terms: 0 + 13 = 13 -7cosx + 6cosx2 = 13 Reorder the terms: -13 + -7cosx + 6cosx2 = 13 + -13 Combine like terms: 13 + -13 = 0 -13 + -7cosx + 6cosx2 = 0 The solution to this equation could not be determined.
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