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Simplifying (Z + 7)(z + 7) = -25 Reorder the terms: (7 + Z)(z + 7) = -25 Reorder the terms: (7 + Z)(7 + z) = -25 Multiply (7 + Z) * (7 + z) (7(7 + z) + Z(7 + z)) = -25 ((7 * 7 + z * 7) + Z(7 + z)) = -25 ((49 + 7z) + Z(7 + z)) = -25 (49 + 7z + (7 * Z + z * Z)) = -25 (49 + 7z + (7Z + zZ)) = -25 Reorder the terms: (49 + 7Z + 7z + zZ) = -25 (49 + 7Z + 7z + zZ) = -25 Solving 49 + 7Z + 7z + zZ = -25 Solving for variable 'Z'. Move all terms containing Z to the left, all other terms to the right. Add '-49' to each side of the equation. 49 + 7Z + 7z + -49 + zZ = -25 + -49 Reorder the terms: 49 + -49 + 7Z + 7z + zZ = -25 + -49 Combine like terms: 49 + -49 = 0 0 + 7Z + 7z + zZ = -25 + -49 7Z + 7z + zZ = -25 + -49 Combine like terms: -25 + -49 = -74 7Z + 7z + zZ = -74 Add '-7z' to each side of the equation. 7Z + 7z + -7z + zZ = -74 + -7z Combine like terms: 7z + -7z = 0 7Z + 0 + zZ = -74 + -7z 7Z + zZ = -74 + -7z Reorder the terms: 74 + 7Z + 7z + zZ = -74 + -7z + 74 + 7z Reorder the terms: 74 + 7Z + 7z + zZ = -74 + 74 + -7z + 7z Combine like terms: -74 + 74 = 0 74 + 7Z + 7z + zZ = 0 + -7z + 7z 74 + 7Z + 7z + zZ = -7z + 7z Combine like terms: -7z + 7z = 0 74 + 7Z + 7z + zZ = 0 The solution to this equation could not be determined.
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