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Simplifying r(z8 + 7) + (z8 + 7) = 0 Reorder the terms: r(7 + z8) + (z8 + 7) = 0 (7 * r + z8 * r) + (z8 + 7) = 0 (7r + rz8) + (z8 + 7) = 0 Reorder the terms: 7r + rz8 + (7 + z8) = 0 Remove parenthesis around (7 + z8) 7r + rz8 + 7 + z8 = 0 Reorder the terms: 7 + 7r + rz8 + z8 = 0 Solving 7 + 7r + rz8 + z8 = 0 Solving for variable 'r'. Move all terms containing r to the left, all other terms to the right. Add '-7' to each side of the equation. 7 + 7r + rz8 + -7 + z8 = 0 + -7 Reorder the terms: 7 + -7 + 7r + rz8 + z8 = 0 + -7 Combine like terms: 7 + -7 = 0 0 + 7r + rz8 + z8 = 0 + -7 7r + rz8 + z8 = 0 + -7 Combine like terms: 0 + -7 = -7 7r + rz8 + z8 = -7 Add '-1z8' to each side of the equation. 7r + rz8 + z8 + -1z8 = -7 + -1z8 Combine like terms: z8 + -1z8 = 0 7r + rz8 + 0 = -7 + -1z8 7r + rz8 = -7 + -1z8 Reorder the terms: 7 + 7r + rz8 + z8 = -7 + -1z8 + 7 + z8 Reorder the terms: 7 + 7r + rz8 + z8 = -7 + 7 + -1z8 + z8 Combine like terms: -7 + 7 = 0 7 + 7r + rz8 + z8 = 0 + -1z8 + z8 7 + 7r + rz8 + z8 = -1z8 + z8 Combine like terms: -1z8 + z8 = 0 7 + 7r + rz8 + z8 = 0 The solution to this equation could not be determined.
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