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Simplifying 8.1x + 2.1y + -7.9 = 0 Reorder the terms: -7.9 + 8.1x + 2.1y = 0 Solving -7.9 + 8.1x + 2.1y = 0 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '7.9' to each side of the equation. -7.9 + 8.1x + 7.9 + 2.1y = 0 + 7.9 Reorder the terms: -7.9 + 7.9 + 8.1x + 2.1y = 0 + 7.9 Combine like terms: -7.9 + 7.9 = 0.0 0.0 + 8.1x + 2.1y = 0 + 7.9 8.1x + 2.1y = 0 + 7.9 Combine like terms: 0 + 7.9 = 7.9 8.1x + 2.1y = 7.9 Add '-2.1y' to each side of the equation. 8.1x + 2.1y + -2.1y = 7.9 + -2.1y Combine like terms: 2.1y + -2.1y = 0.0 8.1x + 0.0 = 7.9 + -2.1y 8.1x = 7.9 + -2.1y Divide each side by '8.1'. x = 0.975308642 + -0.2592592593y Simplifying x = 0.975308642 + -0.2592592593y
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