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Simplifying -1(2x + 2) + -1 = -1x + -1(x + 3) Reorder the terms: -1(2 + 2x) + -1 = -1x + -1(x + 3) (2 * -1 + 2x * -1) + -1 = -1x + -1(x + 3) (-2 + -2x) + -1 = -1x + -1(x + 3) Reorder the terms: -2 + -1 + -2x = -1x + -1(x + 3) Combine like terms: -2 + -1 = -3 -3 + -2x = -1x + -1(x + 3) Reorder the terms: -3 + -2x = -1x + -1(3 + x) -3 + -2x = -1x + (3 * -1 + x * -1) -3 + -2x = -1x + (-3 + -1x) Reorder the terms: -3 + -2x = -3 + -1x + -1x Combine like terms: -1x + -1x = -2x -3 + -2x = -3 + -2x Add '3' to each side of the equation. -3 + 3 + -2x = -3 + 3 + -2x Combine like terms: -3 + 3 = 0 0 + -2x = -3 + 3 + -2x -2x = -3 + 3 + -2x Combine like terms: -3 + 3 = 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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