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Simplifying z2 + -7 = -18 Reorder the terms: -7 + z2 = -18 Solving -7 + z2 = -18 Solving for variable 'z'. Move all terms containing z to the left, all other terms to the right. Add '7' to each side of the equation. -7 + 7 + z2 = -18 + 7 Combine like terms: -7 + 7 = 0 0 + z2 = -18 + 7 z2 = -18 + 7 Combine like terms: -18 + 7 = -11 z2 = -11 Simplifying z2 = -11 Reorder the terms: 11 + z2 = -11 + 11 Combine like terms: -11 + 11 = 0 11 + z2 = 0 The solution to this equation could not be determined.
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