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Simplifying 4x + 31x + -9 = 7(5x + 3) Reorder the terms: -9 + 4x + 31x = 7(5x + 3) Combine like terms: 4x + 31x = 35x -9 + 35x = 7(5x + 3) Reorder the terms: -9 + 35x = 7(3 + 5x) -9 + 35x = (3 * 7 + 5x * 7) -9 + 35x = (21 + 35x) Add '-35x' to each side of the equation. -9 + 35x + -35x = 21 + 35x + -35x Combine like terms: 35x + -35x = 0 -9 + 0 = 21 + 35x + -35x -9 = 21 + 35x + -35x Combine like terms: 35x + -35x = 0 -9 = 21 + 0 -9 = 21 Solving -9 = 21 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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