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Simplifying 63 = -1(-1 + -2n) 63 = (-1 * -1 + -2n * -1) 63 = (1 + 2n) Solving 63 = 1 + 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. 63 + -2n = 1 + 2n + -2n Combine like terms: 2n + -2n = 0 63 + -2n = 1 + 0 63 + -2n = 1 Add '-63' to each side of the equation. 63 + -63 + -2n = 1 + -63 Combine like terms: 63 + -63 = 0 0 + -2n = 1 + -63 -2n = 1 + -63 Combine like terms: 1 + -63 = -62 -2n = -62 Divide each side by '-2'. n = 31 Simplifying n = 31
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