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Simplifying -1(2x + 2) + 1 = -1x + -1(x + 1) Reorder the terms: -1(2 + 2x) + 1 = -1x + -1(x + 1) (2 * -1 + 2x * -1) + 1 = -1x + -1(x + 1) (-2 + -2x) + 1 = -1x + -1(x + 1) Reorder the terms: -2 + 1 + -2x = -1x + -1(x + 1) Combine like terms: -2 + 1 = -1 -1 + -2x = -1x + -1(x + 1) Reorder the terms: -1 + -2x = -1x + -1(1 + x) -1 + -2x = -1x + (1 * -1 + x * -1) -1 + -2x = -1x + (-1 + -1x) Reorder the terms: -1 + -2x = -1 + -1x + -1x Combine like terms: -1x + -1x = -2x -1 + -2x = -1 + -2x Add '1' to each side of the equation. -1 + 1 + -2x = -1 + 1 + -2x Combine like terms: -1 + 1 = 0 0 + -2x = -1 + 1 + -2x -2x = -1 + 1 + -2x Combine like terms: -1 + 1 = 0 -2x = 0 + -2x -2x = -2x Add '2x' to each side of the equation. -2x + 2x = -2x + 2x Combine like terms: -2x + 2x = 0 0 = -2x + 2x Combine like terms: -2x + 2x = 0 0 = 0 Solving 0 = 0 Couldn't find a variable to solve for. This equation is an identity, all real numbers are solutions.
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