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Simplifying 3.9x + 1.6y + 9.9 = 0 Reorder the terms: 9.9 + 3.9x + 1.6y = 0 Solving 9.9 + 3.9x + 1.6y = 0 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-9.9' to each side of the equation. 9.9 + 3.9x + -9.9 + 1.6y = 0 + -9.9 Reorder the terms: 9.9 + -9.9 + 3.9x + 1.6y = 0 + -9.9 Combine like terms: 9.9 + -9.9 = 0.0 0.0 + 3.9x + 1.6y = 0 + -9.9 3.9x + 1.6y = 0 + -9.9 Combine like terms: 0 + -9.9 = -9.9 3.9x + 1.6y = -9.9 Add '-1.6y' to each side of the equation. 3.9x + 1.6y + -1.6y = -9.9 + -1.6y Combine like terms: 1.6y + -1.6y = 0.0 3.9x + 0.0 = -9.9 + -1.6y 3.9x = -9.9 + -1.6y Divide each side by '3.9'. x = -2.538461538 + -0.4102564103y Simplifying x = -2.538461538 + -0.4102564103y
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