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Simplifying 7 = -2(n + -4.5) Reorder the terms: 7 = -2(-4.5 + n) 7 = (-4.5 * -2 + n * -2) 7 = (9 + -2n) Solving 7 = 9 + -2n Solving for variable 'n'. Move all terms containing n to the left, all other terms to the right. Add '2n' to each side of the equation. 7 + 2n = 9 + -2n + 2n Combine like terms: -2n + 2n = 0 7 + 2n = 9 + 0 7 + 2n = 9 Add '-7' to each side of the equation. 7 + -7 + 2n = 9 + -7 Combine like terms: 7 + -7 = 0 0 + 2n = 9 + -7 2n = 9 + -7 Combine like terms: 9 + -7 = 2 2n = 2 Divide each side by '2'. n = 1 Simplifying n = 1
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