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Simplifying n + -7 + 6n = -21 Reorder the terms: -7 + n + 6n = -21 Combine like terms: n + 6n = 7n -7 + 7n = -21 Solving -7 + 7n = -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 + 7n = -21 + 7 Combine like terms: -7 + 7 = 0 0 + 7n = -21 + 7 7n = -21 + 7 Combine like terms: -21 + 7 = -14 7n = -14 Divide each side by '7'. n = -2 Simplifying n = -2
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