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Simplifying 3(x + 7) + 7 = 3x + 8 Reorder the terms: 3(7 + x) + 7 = 3x + 8 (7 * 3 + x * 3) + 7 = 3x + 8 (21 + 3x) + 7 = 3x + 8 Reorder the terms: 21 + 7 + 3x = 3x + 8 Combine like terms: 21 + 7 = 28 28 + 3x = 3x + 8 Reorder the terms: 28 + 3x = 8 + 3x Add '-3x' to each side of the equation. 28 + 3x + -3x = 8 + 3x + -3x Combine like terms: 3x + -3x = 0 28 + 0 = 8 + 3x + -3x 28 = 8 + 3x + -3x Combine like terms: 3x + -3x = 0 28 = 8 + 0 28 = 8 Solving 28 = 8 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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