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Simplifying -18 + 38 = -2(x + 4) Combine like terms: -18 + 38 = 20 20 = -2(x + 4) Reorder the terms: 20 = -2(4 + x) 20 = (4 * -2 + x * -2) 20 = (-8 + -2x) Solving 20 = -8 + -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 = -8 + -2x + 2x Combine like terms: -2x + 2x = 0 20 + 2x = -8 + 0 20 + 2x = -8 Add '-20' to each side of the equation. 20 + -20 + 2x = -8 + -20 Combine like terms: 20 + -20 = 0 0 + 2x = -8 + -20 2x = -8 + -20 Combine like terms: -8 + -20 = -28 2x = -28 Divide each side by '2'. x = -14 Simplifying x = -14
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