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Simplifying (20x + 15) = (20x + 28) Reorder the terms: (15 + 20x) = (20x + 28) Remove parenthesis around (15 + 20x) 15 + 20x = (20x + 28) Reorder the terms: 15 + 20x = (28 + 20x) Remove parenthesis around (28 + 20x) 15 + 20x = 28 + 20x Add '-20x' to each side of the equation. 15 + 20x + -20x = 28 + 20x + -20x Combine like terms: 20x + -20x = 0 15 + 0 = 28 + 20x + -20x 15 = 28 + 20x + -20x Combine like terms: 20x + -20x = 0 15 = 28 + 0 15 = 28 Solving 15 = 28 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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