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Simplifying 2 + -1(n + -7) = 4 + -1n Reorder the terms: 2 + -1(-7 + n) = 4 + -1n 2 + (-7 * -1 + n * -1) = 4 + -1n 2 + (7 + -1n) = 4 + -1n Combine like terms: 2 + 7 = 9 9 + -1n = 4 + -1n Add 'n' to each side of the equation. 9 + -1n + n = 4 + -1n + n Combine like terms: -1n + n = 0 9 + 0 = 4 + -1n + n 9 = 4 + -1n + n Combine like terms: -1n + n = 0 9 = 4 + 0 9 = 4 Solving 9 = 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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