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Simplifying -9(z + -7) * 3Z + -9 = 0 Reorder the terms: -9(-7 + z) * 3Z + -9 = 0 Reorder the terms for easier multiplication: -9 * 3Z(-7 + z) + -9 = 0 Multiply -9 * 3 -27Z(-7 + z) + -9 = 0 (-7 * -27Z + z * -27Z) + -9 = 0 (189Z + -27zZ) + -9 = 0 Reorder the terms: -9 + 189Z + -27zZ = 0 Solving -9 + 189Z + -27zZ = 0 Solving for variable 'Z'. Move all terms containing Z to the left, all other terms to the right. Add '9' to each side of the equation. -9 + 189Z + 9 + -27zZ = 0 + 9 Reorder the terms: -9 + 9 + 189Z + -27zZ = 0 + 9 Combine like terms: -9 + 9 = 0 0 + 189Z + -27zZ = 0 + 9 189Z + -27zZ = 0 + 9 Combine like terms: 0 + 9 = 9 189Z + -27zZ = 9 Reorder the terms: -9 + 189Z + -27zZ = 9 + -9 Combine like terms: 9 + -9 = 0 -9 + 189Z + -27zZ = 0 Factor out the Greatest Common Factor (GCF), '9'. 9(-1 + 21Z + -3zZ) = 0 Ignore the factor 9.Subproblem 1
Set the factor '(-1 + 21Z + -3zZ)' equal to zero and attempt to solve: Simplifying -1 + 21Z + -3zZ = 0 Solving -1 + 21Z + -3zZ = 0 Move all terms containing Z to the left, all other terms to the right. Add '1' to each side of the equation. -1 + 21Z + 1 + -3zZ = 0 + 1 Reorder the terms: -1 + 1 + 21Z + -3zZ = 0 + 1 Combine like terms: -1 + 1 = 0 0 + 21Z + -3zZ = 0 + 1 21Z + -3zZ = 0 + 1 Combine like terms: 0 + 1 = 1 21Z + -3zZ = 1 The solution to this equation could not be determined. This subproblem is being ignored because a solution could not be determined. The solution to this equation could not be determined.
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