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Simplifying 84 = -7n + 2(-2 + -2n) 84 = -7n + (-2 * 2 + -2n * 2) 84 = -7n + (-4 + -4n) Reorder the terms: 84 = -4 + -7n + -4n Combine like terms: -7n + -4n = -11n 84 = -4 + -11n Solving 84 = -4 + -11n Solving for variable 'n'. Move all terms containing n to the left, all other terms to the right. Add '11n' to each side of the equation. 84 + 11n = -4 + -11n + 11n Combine like terms: -11n + 11n = 0 84 + 11n = -4 + 0 84 + 11n = -4 Add '-84' to each side of the equation. 84 + -84 + 11n = -4 + -84 Combine like terms: 84 + -84 = 0 0 + 11n = -4 + -84 11n = -4 + -84 Combine like terms: -4 + -84 = -88 11n = -88 Divide each side by '11'. n = -8 Simplifying n = -8
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