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Simplifying 7x + 13x + -3 = 5(4x + 5) Reorder the terms: -3 + 7x + 13x = 5(4x + 5) Combine like terms: 7x + 13x = 20x -3 + 20x = 5(4x + 5) Reorder the terms: -3 + 20x = 5(5 + 4x) -3 + 20x = (5 * 5 + 4x * 5) -3 + 20x = (25 + 20x) Add '-20x' to each side of the equation. -3 + 20x + -20x = 25 + 20x + -20x Combine like terms: 20x + -20x = 0 -3 + 0 = 25 + 20x + -20x -3 = 25 + 20x + -20x Combine like terms: 20x + -20x = 0 -3 = 25 + 0 -3 = 25 Solving -3 = 25 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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