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Simplifying -7 + 3n = -1(2 + 2n) -7 + 3n = (2 * -1 + 2n * -1) -7 + 3n = (-2 + -2n) Solving -7 + 3n = -2 + -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 + 3n + 2n = -2 + -2n + 2n Combine like terms: 3n + 2n = 5n -7 + 5n = -2 + -2n + 2n Combine like terms: -2n + 2n = 0 -7 + 5n = -2 + 0 -7 + 5n = -2 Add '7' to each side of the equation. -7 + 7 + 5n = -2 + 7 Combine like terms: -7 + 7 = 0 0 + 5n = -2 + 7 5n = -2 + 7 Combine like terms: -2 + 7 = 5 5n = 5 Divide each side by '5'. n = 1 Simplifying n = 1
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