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Simplifying r((z) * 9 + 2) + -1((z) * 9 + 2) = 0 Reorder the terms for easier multiplication: r(9z + 2) + -1((z) * 9 + 2) = 0 Reorder the terms: r(2 + 9z) + -1((z) * 9 + 2) = 0 (2 * r + 9z * r) + -1((z) * 9 + 2) = 0 (2r + 9rz) + -1((z) * 9 + 2) = 0 Reorder the terms for easier multiplication: 2r + 9rz + -1(9z + 2) = 0 Reorder the terms: 2r + 9rz + -1(2 + 9z) = 0 2r + 9rz + (2 * -1 + 9z * -1) = 0 2r + 9rz + (-2 + -9z) = 0 Reorder the terms: -2 + 2r + 9rz + -9z = 0 Solving -2 + 2r + 9rz + -9z = 0 Solving for variable 'r'. Move all terms containing r to the left, all other terms to the right. Add '2' to each side of the equation. -2 + 2r + 9rz + 2 + -9z = 0 + 2 Reorder the terms: -2 + 2 + 2r + 9rz + -9z = 0 + 2 Combine like terms: -2 + 2 = 0 0 + 2r + 9rz + -9z = 0 + 2 2r + 9rz + -9z = 0 + 2 Combine like terms: 0 + 2 = 2 2r + 9rz + -9z = 2 Add '9z' to each side of the equation. 2r + 9rz + -9z + 9z = 2 + 9z Combine like terms: -9z + 9z = 0 2r + 9rz + 0 = 2 + 9z 2r + 9rz = 2 + 9z Reorder the terms: -2 + 2r + 9rz + -9z = 2 + 9z + -2 + -9z Reorder the terms: -2 + 2r + 9rz + -9z = 2 + -2 + 9z + -9z Combine like terms: 2 + -2 = 0 -2 + 2r + 9rz + -9z = 0 + 9z + -9z -2 + 2r + 9rz + -9z = 9z + -9z Combine like terms: 9z + -9z = 0 -2 + 2r + 9rz + -9z = 0 The solution to this equation could not be determined.
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