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Simplifying 4(1 + -7n) = 4n + 4 (1 * 4 + -7n * 4) = 4n + 4 (4 + -28n) = 4n + 4 Reorder the terms: 4 + -28n = 4 + 4n Add '-4' to each side of the equation. 4 + -4 + -28n = 4 + -4 + 4n Combine like terms: 4 + -4 = 0 0 + -28n = 4 + -4 + 4n -28n = 4 + -4 + 4n Combine like terms: 4 + -4 = 0 -28n = 0 + 4n -28n = 4n Solving -28n = 4n Solving for variable 'n'. Move all terms containing n to the left, all other terms to the right. Add '-4n' to each side of the equation. -28n + -4n = 4n + -4n Combine like terms: -28n + -4n = -32n -32n = 4n + -4n Combine like terms: 4n + -4n = 0 -32n = 0 Divide each side by '-32'. n = 0 Simplifying n = 0
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