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Simplifying 3n + -7 + 4n + 3 = 7n + -7 Reorder the terms: -7 + 3 + 3n + 4n = 7n + -7 Combine like terms: -7 + 3 = -4 -4 + 3n + 4n = 7n + -7 Combine like terms: 3n + 4n = 7n -4 + 7n = 7n + -7 Reorder the terms: -4 + 7n = -7 + 7n Add '-7n' to each side of the equation. -4 + 7n + -7n = -7 + 7n + -7n Combine like terms: 7n + -7n = 0 -4 + 0 = -7 + 7n + -7n -4 = -7 + 7n + -7n Combine like terms: 7n + -7n = 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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