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Simplifying -4n + -3(n + 7) = -28 Reorder the terms: -4n + -3(7 + n) = -28 -4n + (7 * -3 + n * -3) = -28 -4n + (-21 + -3n) = -28 Reorder the terms: -21 + -4n + -3n = -28 Combine like terms: -4n + -3n = -7n -21 + -7n = -28 Solving -21 + -7n = -28 Solving for variable 'n'. Move all terms containing n to the left, all other terms to the right. Add '21' to each side of the equation. -21 + 21 + -7n = -28 + 21 Combine like terms: -21 + 21 = 0 0 + -7n = -28 + 21 -7n = -28 + 21 Combine like terms: -28 + 21 = -7 -7n = -7 Divide each side by '-7'. n = 1 Simplifying n = 1
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