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Simplifying x + 1 + -1(x + -1) = 1 Reorder the terms: x + 1 + -1(-1 + x) = 1 x + 1 + (-1 * -1 + x * -1) = 1 x + 1 + (1 + -1x) = 1 Reorder the terms: 1 + 1 + x + -1x = 1 Combine like terms: 1 + 1 = 2 2 + x + -1x = 1 Combine like terms: x + -1x = 0 2 + 0 = 1 2 = 1 Solving 2 = 1 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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