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Simplifying (Z2 + -7) + 4z2 + -7 = 12 Reorder the terms: (-7 + Z2) + 4z2 + -7 = 12 Remove parenthesis around (-7 + Z2) -7 + Z2 + 4z2 + -7 = 12 Reorder the terms: -7 + -7 + Z2 + 4z2 = 12 Combine like terms: -7 + -7 = -14 -14 + Z2 + 4z2 = 12 Solving -14 + Z2 + 4z2 = 12 Solving for variable 'Z'. Move all terms containing Z to the left, all other terms to the right. Add '14' to each side of the equation. -14 + Z2 + 14 + 4z2 = 12 + 14 Reorder the terms: -14 + 14 + Z2 + 4z2 = 12 + 14 Combine like terms: -14 + 14 = 0 0 + Z2 + 4z2 = 12 + 14 Z2 + 4z2 = 12 + 14 Combine like terms: 12 + 14 = 26 Z2 + 4z2 = 26 Add '-4z2' to each side of the equation. Z2 + 4z2 + -4z2 = 26 + -4z2 Combine like terms: 4z2 + -4z2 = 0 Z2 + 0 = 26 + -4z2 Z2 = 26 + -4z2 Simplifying Z2 = 26 + -4z2 Reorder the terms: -26 + Z2 + 4z2 = 26 + -4z2 + -26 + 4z2 Reorder the terms: -26 + Z2 + 4z2 = 26 + -26 + -4z2 + 4z2 Combine like terms: 26 + -26 = 0 -26 + Z2 + 4z2 = 0 + -4z2 + 4z2 -26 + Z2 + 4z2 = -4z2 + 4z2 Combine like terms: -4z2 + 4z2 = 0 -26 + Z2 + 4z2 = 0 The solution to this equation could not be determined.
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