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Simplifying -1(x + 1) = 2x Reorder the terms: -1(1 + x) = 2x (1 * -1 + x * -1) = 2x (-1 + -1x) = 2x Solving -1 + -1x = 2x Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-2x' to each side of the equation. -1 + -1x + -2x = 2x + -2x Combine like terms: -1x + -2x = -3x -1 + -3x = 2x + -2x Combine like terms: 2x + -2x = 0 -1 + -3x = 0 Add '1' to each side of the equation. -1 + 1 + -3x = 0 + 1 Combine like terms: -1 + 1 = 0 0 + -3x = 0 + 1 -3x = 0 + 1 Combine like terms: 0 + 1 = 1 -3x = 1 Divide each side by '-3'. x = -0.3333333333 Simplifying x = -0.3333333333
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