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Simplifying Z2 + 10z + 21 = 0 Reorder the terms: 21 + Z2 + 10z = 0 Solving 21 + Z2 + 10z = 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 + 10z = 0 + -21 Reorder the terms: 21 + -21 + Z2 + 10z = 0 + -21 Combine like terms: 21 + -21 = 0 0 + Z2 + 10z = 0 + -21 Z2 + 10z = 0 + -21 Combine like terms: 0 + -21 = -21 Z2 + 10z = -21 Add '-10z' to each side of the equation. Z2 + 10z + -10z = -21 + -10z Combine like terms: 10z + -10z = 0 Z2 + 0 = -21 + -10z Z2 = -21 + -10z Simplifying Z2 = -21 + -10z Reorder the terms: 21 + Z2 + 10z = -21 + -10z + 21 + 10z Reorder the terms: 21 + Z2 + 10z = -21 + 21 + -10z + 10z Combine like terms: -21 + 21 = 0 21 + Z2 + 10z = 0 + -10z + 10z 21 + Z2 + 10z = -10z + 10z Combine like terms: -10z + 10z = 0 21 + Z2 + 10z = 0 The solution to this equation could not be determined.
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