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Simplifying S = 2x2 + -12x + 86 Reorder the terms: S = 86 + -12x + 2x2 Solving S = 86 + -12x + 2x2 Solving for variable 'S'. Move all terms containing S to the left, all other terms to the right. Simplifying S = 86 + -12x + 2x2
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