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Simplifying D2 + -1d + -20 = 0 Reorder the terms: -20 + D2 + -1d = 0 Solving -20 + D2 + -1d = 0 Solving for variable 'D'. Move all terms containing D to the left, all other terms to the right. Add '20' to each side of the equation. -20 + D2 + 20 + -1d = 0 + 20 Reorder the terms: -20 + 20 + D2 + -1d = 0 + 20 Combine like terms: -20 + 20 = 0 0 + D2 + -1d = 0 + 20 D2 + -1d = 0 + 20 Combine like terms: 0 + 20 = 20 D2 + -1d = 20 Add 'd' to each side of the equation. D2 + -1d + d = 20 + d Combine like terms: -1d + d = 0 D2 + 0 = 20 + d D2 = 20 + d Simplifying D2 = 20 + d Reorder the terms: -20 + D2 + -1d = 20 + d + -20 + -1d Reorder the terms: -20 + D2 + -1d = 20 + -20 + d + -1d Combine like terms: 20 + -20 = 0 -20 + D2 + -1d = 0 + d + -1d -20 + D2 + -1d = d + -1d Combine like terms: d + -1d = 0 -20 + D2 + -1d = 0 The solution to this equation could not be determined.
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