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Simplifying 2 + 5(x + -1) = 7x + 12 + -2x Reorder the terms: 2 + 5(-1 + x) = 7x + 12 + -2x 2 + (-1 * 5 + x * 5) = 7x + 12 + -2x 2 + (-5 + 5x) = 7x + 12 + -2x Combine like terms: 2 + -5 = -3 -3 + 5x = 7x + 12 + -2x Reorder the terms: -3 + 5x = 12 + 7x + -2x Combine like terms: 7x + -2x = 5x -3 + 5x = 12 + 5x Add '-5x' to each side of the equation. -3 + 5x + -5x = 12 + 5x + -5x Combine like terms: 5x + -5x = 0 -3 + 0 = 12 + 5x + -5x -3 = 12 + 5x + -5x Combine like terms: 5x + -5x = 0 -3 = 12 + 0 -3 = 12 Solving -3 = 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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