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