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Simplifying Z2 + -2z + 7 = 0 Reorder the terms: 7 + Z2 + -2z = 0 Solving 7 + Z2 + -2z = 0 Solving for variable 'Z'. Move all terms containing Z to the left, all other terms to the right. Add '-7' to each side of the equation. 7 + Z2 + -7 + -2z = 0 + -7 Reorder the terms: 7 + -7 + Z2 + -2z = 0 + -7 Combine like terms: 7 + -7 = 0 0 + Z2 + -2z = 0 + -7 Z2 + -2z = 0 + -7 Combine like terms: 0 + -7 = -7 Z2 + -2z = -7 Add '2z' to each side of the equation. Z2 + -2z + 2z = -7 + 2z Combine like terms: -2z + 2z = 0 Z2 + 0 = -7 + 2z Z2 = -7 + 2z Simplifying Z2 = -7 + 2z Reorder the terms: 7 + Z2 + -2z = -7 + 2z + 7 + -2z Reorder the terms: 7 + Z2 + -2z = -7 + 7 + 2z + -2z Combine like terms: -7 + 7 = 0 7 + Z2 + -2z = 0 + 2z + -2z 7 + Z2 + -2z = 2z + -2z Combine like terms: 2z + -2z = 0 7 + Z2 + -2z = 0 The solution to this equation could not be determined.
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