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Simplifying 12 + 20x = 5(4x + 3) Reorder the terms: 12 + 20x = 5(3 + 4x) 12 + 20x = (3 * 5 + 4x * 5) 12 + 20x = (15 + 20x) Add '-20x' to each side of the equation. 12 + 20x + -20x = 15 + 20x + -20x Combine like terms: 20x + -20x = 0 12 + 0 = 15 + 20x + -20x 12 = 15 + 20x + -20x Combine like terms: 20x + -20x = 0 12 = 15 + 0 12 = 15 Solving 12 = 15 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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