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Simplifying -7 = 1 + -2n + -4 Reorder the terms: -7 = 1 + -4 + -2n Combine like terms: 1 + -4 = -3 -7 = -3 + -2n Solving -7 = -3 + -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 = -3 + -2n + 2n Combine like terms: -2n + 2n = 0 -7 + 2n = -3 + 0 -7 + 2n = -3 Add '7' to each side of the equation. -7 + 7 + 2n = -3 + 7 Combine like terms: -7 + 7 = 0 0 + 2n = -3 + 7 2n = -3 + 7 Combine like terms: -3 + 7 = 4 2n = 4 Divide each side by '2'. n = 2 Simplifying n = 2
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