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Simplifying 21z2 + 85 = 0 Reorder the terms: 85 + 21z2 = 0 Solving 85 + 21z2 = 0 Solving for variable 'z'. Move all terms containing z to the left, all other terms to the right. Add '-85' to each side of the equation. 85 + -85 + 21z2 = 0 + -85 Combine like terms: 85 + -85 = 0 0 + 21z2 = 0 + -85 21z2 = 0 + -85 Combine like terms: 0 + -85 = -85 21z2 = -85 Divide each side by '21'. z2 = -4.047619048 Simplifying z2 = -4.047619048 Reorder the terms: 4.047619048 + z2 = -4.047619048 + 4.047619048 Combine like terms: -4.047619048 + 4.047619048 = 0.000000000 4.047619048 + z2 = 0.000000000 The solution to this equation could not be determined.
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