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Simplifying 20 + 4.5x + 4y = 65 Solving 20 + 4.5x + 4y = 65 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-20' to each side of the equation. 20 + 4.5x + -20 + 4y = 65 + -20 Reorder the terms: 20 + -20 + 4.5x + 4y = 65 + -20 Combine like terms: 20 + -20 = 0 0 + 4.5x + 4y = 65 + -20 4.5x + 4y = 65 + -20 Combine like terms: 65 + -20 = 45 4.5x + 4y = 45 Add '-4y' to each side of the equation. 4.5x + 4y + -4y = 45 + -4y Combine like terms: 4y + -4y = 0 4.5x + 0 = 45 + -4y 4.5x = 45 + -4y Divide each side by '4.5'. x = 10 + -0.8888888889y Simplifying x = 10 + -0.8888888889y
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