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Simplifying 4(n + 20) = 4n + 20 Reorder the terms: 4(20 + n) = 4n + 20 (20 * 4 + n * 4) = 4n + 20 (80 + 4n) = 4n + 20 Reorder the terms: 80 + 4n = 20 + 4n Add '-4n' to each side of the equation. 80 + 4n + -4n = 20 + 4n + -4n Combine like terms: 4n + -4n = 0 80 + 0 = 20 + 4n + -4n 80 = 20 + 4n + -4n Combine like terms: 4n + -4n = 0 80 = 20 + 0 80 = 20 Solving 80 = 20 Couldn't find a variable to solve for. This equation is invalid, the left and right sides are not equal, therefore there is no solution.
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