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Simplifying D2 + 2d + -15 = 0 Reorder the terms: -15 + D2 + 2d = 0 Solving -15 + D2 + 2d = 0 Solving for variable 'D'. Move all terms containing D to the left, all other terms to the right. Add '15' to each side of the equation. -15 + D2 + 15 + 2d = 0 + 15 Reorder the terms: -15 + 15 + D2 + 2d = 0 + 15 Combine like terms: -15 + 15 = 0 0 + D2 + 2d = 0 + 15 D2 + 2d = 0 + 15 Combine like terms: 0 + 15 = 15 D2 + 2d = 15 Add '-2d' to each side of the equation. D2 + 2d + -2d = 15 + -2d Combine like terms: 2d + -2d = 0 D2 + 0 = 15 + -2d D2 = 15 + -2d Simplifying D2 = 15 + -2d Reorder the terms: -15 + D2 + 2d = 15 + -2d + -15 + 2d Reorder the terms: -15 + D2 + 2d = 15 + -15 + -2d + 2d Combine like terms: 15 + -15 = 0 -15 + D2 + 2d = 0 + -2d + 2d -15 + D2 + 2d = -2d + 2d Combine like terms: -2d + 2d = 0 -15 + D2 + 2d = 0 The solution to this equation could not be determined.
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