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Simplifying (7z3 + 4z + -1) + (2z2 + -6z + 2) = 0 Reorder the terms: (-1 + 4z + 7z3) + (2z2 + -6z + 2) = 0 Remove parenthesis around (-1 + 4z + 7z3) -1 + 4z + 7z3 + (2z2 + -6z + 2) = 0 Reorder the terms: -1 + 4z + 7z3 + (2 + -6z + 2z2) = 0 Remove parenthesis around (2 + -6z + 2z2) -1 + 4z + 7z3 + 2 + -6z + 2z2 = 0 Reorder the terms: -1 + 2 + 4z + -6z + 2z2 + 7z3 = 0 Combine like terms: -1 + 2 = 1 1 + 4z + -6z + 2z2 + 7z3 = 0 Combine like terms: 4z + -6z = -2z 1 + -2z + 2z2 + 7z3 = 0 Solving 1 + -2z + 2z2 + 7z3 = 0 Solving for variable 'z'. The solution to this equation could not be determined.
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