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