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