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Simplifying -1(2x + 4) = 18 Reorder the terms: -1(4 + 2x) = 18 (4 * -1 + 2x * -1) = 18 (-4 + -2x) = 18 Solving -4 + -2x = 18 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '4' to each side of the equation. -4 + 4 + -2x = 18 + 4 Combine like terms: -4 + 4 = 0 0 + -2x = 18 + 4 -2x = 18 + 4 Combine like terms: 18 + 4 = 22 -2x = 22 Divide each side by '-2'. x = -11 Simplifying x = -11
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