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Simplifying 45c + 18b + 81a = 0 Reorder the terms: 81a + 18b + 45c = 0 Solving 81a + 18b + 45c = 0 Solving for variable 'a'. Move all terms containing a to the left, all other terms to the right. Add '-18b' to each side of the equation. 81a + 18b + -18b + 45c = 0 + -18b Combine like terms: 18b + -18b = 0 81a + 0 + 45c = 0 + -18b 81a + 45c = 0 + -18b Remove the zero: 81a + 45c = -18b Add '-45c' to each side of the equation. 81a + 45c + -45c = -18b + -45c Combine like terms: 45c + -45c = 0 81a + 0 = -18b + -45c 81a = -18b + -45c Divide each side by '81'. a = -0.2222222222b + -0.5555555556c Simplifying a = -0.2222222222b + -0.5555555556c
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