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Simplifying 3(x + 3) + 9 = 3x + 9 Reorder the terms: 3(3 + x) + 9 = 3x + 9 (3 * 3 + x * 3) + 9 = 3x + 9 (9 + 3x) + 9 = 3x + 9 Reorder the terms: 9 + 9 + 3x = 3x + 9 Combine like terms: 9 + 9 = 18 18 + 3x = 3x + 9 Reorder the terms: 18 + 3x = 9 + 3x Add '-3x' to each side of the equation. 18 + 3x + -3x = 9 + 3x + -3x Combine like terms: 3x + -3x = 0 18 + 0 = 9 + 3x + -3x 18 = 9 + 3x + -3x Combine like terms: 3x + -3x = 0 18 = 9 + 0 18 = 9 Solving 18 = 9 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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