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Simplifying Z2 + -20z + -21 = 0 Reorder the terms: -21 + Z2 + -20z = 0 Solving -21 + Z2 + -20z = 0 Solving for variable 'Z'. Move all terms containing Z to the left, all other terms to the right. Add '21' to each side of the equation. -21 + Z2 + 21 + -20z = 0 + 21 Reorder the terms: -21 + 21 + Z2 + -20z = 0 + 21 Combine like terms: -21 + 21 = 0 0 + Z2 + -20z = 0 + 21 Z2 + -20z = 0 + 21 Combine like terms: 0 + 21 = 21 Z2 + -20z = 21 Add '20z' to each side of the equation. Z2 + -20z + 20z = 21 + 20z Combine like terms: -20z + 20z = 0 Z2 + 0 = 21 + 20z Z2 = 21 + 20z Simplifying Z2 = 21 + 20z Reorder the terms: -21 + Z2 + -20z = 21 + 20z + -21 + -20z Reorder the terms: -21 + Z2 + -20z = 21 + -21 + 20z + -20z Combine like terms: 21 + -21 = 0 -21 + Z2 + -20z = 0 + 20z + -20z -21 + Z2 + -20z = 20z + -20z Combine like terms: 20z + -20z = 0 -21 + Z2 + -20z = 0 The solution to this equation could not be determined.
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