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Simplifying 2z2 + 90 = 0 Reorder the terms: 90 + 2z2 = 0 Solving 90 + 2z2 = 0 Solving for variable 'z'. Move all terms containing z to the left, all other terms to the right. Add '-90' to each side of the equation. 90 + -90 + 2z2 = 0 + -90 Combine like terms: 90 + -90 = 0 0 + 2z2 = 0 + -90 2z2 = 0 + -90 Combine like terms: 0 + -90 = -90 2z2 = -90 Divide each side by '2'. z2 = -45 Simplifying z2 = -45 Reorder the terms: 45 + z2 = -45 + 45 Combine like terms: -45 + 45 = 0 45 + z2 = 0 The solution to this equation could not be determined.
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