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Simplifying 3x + 15 = 3(x + 1) Reorder the terms: 15 + 3x = 3(x + 1) Reorder the terms: 15 + 3x = 3(1 + x) 15 + 3x = (1 * 3 + x * 3) 15 + 3x = (3 + 3x) Add '-3x' to each side of the equation. 15 + 3x + -3x = 3 + 3x + -3x Combine like terms: 3x + -3x = 0 15 + 0 = 3 + 3x + -3x 15 = 3 + 3x + -3x Combine like terms: 3x + -3x = 0 15 = 3 + 0 15 = 3 Solving 15 = 3 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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