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Simplifying 2x + 18 = -20 + -2x Reorder the terms: 18 + 2x = -20 + -2x Solving 18 + 2x = -20 + -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. 18 + 2x + 2x = -20 + -2x + 2x Combine like terms: 2x + 2x = 4x 18 + 4x = -20 + -2x + 2x Combine like terms: -2x + 2x = 0 18 + 4x = -20 + 0 18 + 4x = -20 Add '-18' to each side of the equation. 18 + -18 + 4x = -20 + -18 Combine like terms: 18 + -18 = 0 0 + 4x = -20 + -18 4x = -20 + -18 Combine like terms: -20 + -18 = -38 4x = -38 Divide each side by '4'. x = -9.5 Simplifying x = -9.5
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