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Simplifying (2z + -9)(7 + Z) = 0 Reorder the terms: (-9 + 2z)(7 + Z) = 0 Multiply (-9 + 2z) * (7 + Z) (-9(7 + Z) + 2z * (7 + Z)) = 0 ((7 * -9 + Z * -9) + 2z * (7 + Z)) = 0 ((-63 + -9Z) + 2z * (7 + Z)) = 0 (-63 + -9Z + (7 * 2z + Z * 2z)) = 0 (-63 + -9Z + (14z + 2zZ)) = 0 (-63 + -9Z + 14z + 2zZ) = 0 Solving -63 + -9Z + 14z + 2zZ = 0 Solving for variable 'Z'. Move all terms containing Z to the left, all other terms to the right. Add '63' to each side of the equation. -63 + -9Z + 14z + 63 + 2zZ = 0 + 63 Reorder the terms: -63 + 63 + -9Z + 14z + 2zZ = 0 + 63 Combine like terms: -63 + 63 = 0 0 + -9Z + 14z + 2zZ = 0 + 63 -9Z + 14z + 2zZ = 0 + 63 Combine like terms: 0 + 63 = 63 -9Z + 14z + 2zZ = 63 Add '-14z' to each side of the equation. -9Z + 14z + -14z + 2zZ = 63 + -14z Combine like terms: 14z + -14z = 0 -9Z + 0 + 2zZ = 63 + -14z -9Z + 2zZ = 63 + -14z Reorder the terms: -63 + -9Z + 14z + 2zZ = 63 + -14z + -63 + 14z Reorder the terms: -63 + -9Z + 14z + 2zZ = 63 + -63 + -14z + 14z Combine like terms: 63 + -63 = 0 -63 + -9Z + 14z + 2zZ = 0 + -14z + 14z -63 + -9Z + 14z + 2zZ = -14z + 14z Combine like terms: -14z + 14z = 0 -63 + -9Z + 14z + 2zZ = 0 The solution to this equation could not be determined.
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