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Simplifying 2x2 + 10n + -28 = 0 Reorder the terms: -28 + 10n + 2x2 = 0 Solving -28 + 10n + 2x2 = 0 Solving for variable 'n'. Move all terms containing n to the left, all other terms to the right. Add '28' to each side of the equation. -28 + 10n + 28 + 2x2 = 0 + 28 Reorder the terms: -28 + 28 + 10n + 2x2 = 0 + 28 Combine like terms: -28 + 28 = 0 0 + 10n + 2x2 = 0 + 28 10n + 2x2 = 0 + 28 Combine like terms: 0 + 28 = 28 10n + 2x2 = 28 Add '-2x2' to each side of the equation. 10n + 2x2 + -2x2 = 28 + -2x2 Combine like terms: 2x2 + -2x2 = 0 10n + 0 = 28 + -2x2 10n = 28 + -2x2 Divide each side by '10'. n = 2.8 + -0.2x2 Simplifying n = 2.8 + -0.2x2
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