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Simplifying 28 + 7n = 7(5 + n) 28 + 7n = (5 * 7 + n * 7) 28 + 7n = (35 + 7n) Add '-7n' to each side of the equation. 28 + 7n + -7n = 35 + 7n + -7n Combine like terms: 7n + -7n = 0 28 + 0 = 35 + 7n + -7n 28 = 35 + 7n + -7n Combine like terms: 7n + -7n = 0 28 = 35 + 0 28 = 35 Solving 28 = 35 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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