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Simplifying 3(x + 5) + -7 = x + 12 + 2x Reorder the terms: 3(5 + x) + -7 = x + 12 + 2x (5 * 3 + x * 3) + -7 = x + 12 + 2x (15 + 3x) + -7 = x + 12 + 2x Reorder the terms: 15 + -7 + 3x = x + 12 + 2x Combine like terms: 15 + -7 = 8 8 + 3x = x + 12 + 2x Reorder the terms: 8 + 3x = 12 + x + 2x Combine like terms: x + 2x = 3x 8 + 3x = 12 + 3x Add '-3x' to each side of the equation. 8 + 3x + -3x = 12 + 3x + -3x Combine like terms: 3x + -3x = 0 8 + 0 = 12 + 3x + -3x 8 = 12 + 3x + -3x Combine like terms: 3x + -3x = 0 8 = 12 + 0 8 = 12 Solving 8 = 12 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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