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Simplifying 9a + 13C + 2ab + 13c + 2ab + -9b = 0 Reorder the terms: 13C + 9a + 2ab + 2ab + -9b + 13c = 0 Combine like terms: 2ab + 2ab = 4ab 13C + 9a + 4ab + -9b + 13c = 0 Solving 13C + 9a + 4ab + -9b + 13c = 0 Solving for variable 'C'. Move all terms containing C to the left, all other terms to the right. Add '-9a' to each side of the equation. 13C + 9a + 4ab + -9b + -9a + 13c = 0 + -9a Reorder the terms: 13C + 9a + -9a + 4ab + -9b + 13c = 0 + -9a Combine like terms: 9a + -9a = 0 13C + 0 + 4ab + -9b + 13c = 0 + -9a 13C + 4ab + -9b + 13c = 0 + -9a Remove the zero: 13C + 4ab + -9b + 13c = -9a Add '-4ab' to each side of the equation. 13C + 4ab + -9b + -4ab + 13c = -9a + -4ab Reorder the terms: 13C + 4ab + -4ab + -9b + 13c = -9a + -4ab Combine like terms: 4ab + -4ab = 0 13C + 0 + -9b + 13c = -9a + -4ab 13C + -9b + 13c = -9a + -4ab Add '9b' to each side of the equation. 13C + -9b + 9b + 13c = -9a + -4ab + 9b Combine like terms: -9b + 9b = 0 13C + 0 + 13c = -9a + -4ab + 9b 13C + 13c = -9a + -4ab + 9b Add '-13c' to each side of the equation. 13C + 13c + -13c = -9a + -4ab + 9b + -13c Combine like terms: 13c + -13c = 0 13C + 0 = -9a + -4ab + 9b + -13c 13C = -9a + -4ab + 9b + -13c Divide each side by '13'. C = -0.6923076923a + -0.3076923077ab + 0.6923076923b + -1c Simplifying C = -0.6923076923a + -0.3076923077ab + 0.6923076923b + -1c
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