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Simplifying 2 + -7(1 + -4n) = 4(1 + 7n) 2 + (1 * -7 + -4n * -7) = 4(1 + 7n) 2 + (-7 + 28n) = 4(1 + 7n) Combine like terms: 2 + -7 = -5 -5 + 28n = 4(1 + 7n) -5 + 28n = (1 * 4 + 7n * 4) -5 + 28n = (4 + 28n) Add '-28n' to each side of the equation. -5 + 28n + -28n = 4 + 28n + -28n Combine like terms: 28n + -28n = 0 -5 + 0 = 4 + 28n + -28n -5 = 4 + 28n + -28n Combine like terms: 28n + -28n = 0 -5 = 4 + 0 -5 = 4 Solving -5 = 4 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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