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