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Simplifying -1(x + 2) = -20 Reorder the terms: -1(2 + x) = -20 (2 * -1 + x * -1) = -20 (-2 + -1x) = -20 Solving -2 + -1x = -20 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '2' to each side of the equation. -2 + 2 + -1x = -20 + 2 Combine like terms: -2 + 2 = 0 0 + -1x = -20 + 2 -1x = -20 + 2 Combine like terms: -20 + 2 = -18 -1x = -18 Divide each side by '-1'. x = 18 Simplifying x = 18
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