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Simplifying 9a + 27b + 81 = 0 Reorder the terms: 81 + 9a + 27b = 0 Solving 81 + 9a + 27b = 0 Solving for variable 'a'. Move all terms containing a to the left, all other terms to the right. Add '-81' to each side of the equation. 81 + 9a + -81 + 27b = 0 + -81 Reorder the terms: 81 + -81 + 9a + 27b = 0 + -81 Combine like terms: 81 + -81 = 0 0 + 9a + 27b = 0 + -81 9a + 27b = 0 + -81 Combine like terms: 0 + -81 = -81 9a + 27b = -81 Add '-27b' to each side of the equation. 9a + 27b + -27b = -81 + -27b Combine like terms: 27b + -27b = 0 9a + 0 = -81 + -27b 9a = -81 + -27b Divide each side by '9'. a = -9 + -3b Simplifying a = -9 + -3b
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