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Simplifying 2x + -20 = -2(x + 2) Reorder the terms: -20 + 2x = -2(x + 2) Reorder the terms: -20 + 2x = -2(2 + x) -20 + 2x = (2 * -2 + x * -2) -20 + 2x = (-4 + -2x) Solving -20 + 2x = -4 + -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. -20 + 2x + 2x = -4 + -2x + 2x Combine like terms: 2x + 2x = 4x -20 + 4x = -4 + -2x + 2x Combine like terms: -2x + 2x = 0 -20 + 4x = -4 + 0 -20 + 4x = -4 Add '20' to each side of the equation. -20 + 20 + 4x = -4 + 20 Combine like terms: -20 + 20 = 0 0 + 4x = -4 + 20 4x = -4 + 20 Combine like terms: -4 + 20 = 16 4x = 16 Divide each side by '4'. x = 4 Simplifying x = 4
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