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Simplifying 2n + -7 = -21 Reorder the terms: -7 + 2n = -21 Solving -7 + 2n = -21 Solving for variable 'n'. Move all terms containing n to the left, all other terms to the right. Add '7' to each side of the equation. -7 + 7 + 2n = -21 + 7 Combine like terms: -7 + 7 = 0 0 + 2n = -21 + 7 2n = -21 + 7 Combine like terms: -21 + 7 = -14 2n = -14 Divide each side by '2'. n = -7 Simplifying n = -7
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