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Simplifying 20x + 30y = 140 Solving 20x + 30y = 140 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-30y' to each side of the equation. 20x + 30y + -30y = 140 + -30y Combine like terms: 30y + -30y = 0 20x + 0 = 140 + -30y 20x = 140 + -30y Divide each side by '20'. x = 7 + -1.5y Simplifying x = 7 + -1.5y
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