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Simplifying -1 + 7n = 8n + -1(n + -5) Reorder the terms: -1 + 7n = 8n + -1(-5 + n) -1 + 7n = 8n + (-5 * -1 + n * -1) -1 + 7n = 8n + (5 + -1n) Reorder the terms: -1 + 7n = 5 + 8n + -1n Combine like terms: 8n + -1n = 7n -1 + 7n = 5 + 7n Add '-7n' to each side of the equation. -1 + 7n + -7n = 5 + 7n + -7n Combine like terms: 7n + -7n = 0 -1 + 0 = 5 + 7n + -7n -1 = 5 + 7n + -7n Combine like terms: 7n + -7n = 0 -1 = 5 + 0 -1 = 5 Solving -1 = 5 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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