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Simplifying 84 = -7(-6 + -2n) 84 = (-6 * -7 + -2n * -7) 84 = (42 + 14n) Solving 84 = 42 + 14n Solving for variable 'n'. Move all terms containing n to the left, all other terms to the right. Add '-14n' to each side of the equation. 84 + -14n = 42 + 14n + -14n Combine like terms: 14n + -14n = 0 84 + -14n = 42 + 0 84 + -14n = 42 Add '-84' to each side of the equation. 84 + -84 + -14n = 42 + -84 Combine like terms: 84 + -84 = 0 0 + -14n = 42 + -84 -14n = 42 + -84 Combine like terms: 42 + -84 = -42 -14n = -42 Divide each side by '-14'. n = 3 Simplifying n = 3
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