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Simplifying -2x + -1(2x + -1) = 4(1 + -1x) Reorder the terms: -2x + -1(-1 + 2x) = 4(1 + -1x) -2x + (-1 * -1 + 2x * -1) = 4(1 + -1x) -2x + (1 + -2x) = 4(1 + -1x) Reorder the terms: 1 + -2x + -2x = 4(1 + -1x) Combine like terms: -2x + -2x = -4x 1 + -4x = 4(1 + -1x) 1 + -4x = (1 * 4 + -1x * 4) 1 + -4x = (4 + -4x) Add '4x' to each side of the equation. 1 + -4x + 4x = 4 + -4x + 4x Combine like terms: -4x + 4x = 0 1 + 0 = 4 + -4x + 4x 1 = 4 + -4x + 4x Combine like terms: -4x + 4x = 0 1 = 4 + 0 1 = 4 Solving 1 = 4 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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