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Simplifying y = -0.2x2 + 10x + 280 Reorder the terms: y = 280 + 10x + -0.2x2 Solving y = 280 + 10x + -0.2x2 Solving for variable 'y'. Move all terms containing y to the left, all other terms to the right. Simplifying y = 280 + 10x + -0.2x2
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