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