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Simplifying 2x + 20 = x + -1 Reorder the terms: 20 + 2x = x + -1 Reorder the terms: 20 + 2x = -1 + x Solving 20 + 2x = -1 + x Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-1x' to each side of the equation. 20 + 2x + -1x = -1 + x + -1x Combine like terms: 2x + -1x = 1x 20 + 1x = -1 + x + -1x Combine like terms: x + -1x = 0 20 + 1x = -1 + 0 20 + 1x = -1 Add '-20' to each side of the equation. 20 + -20 + 1x = -1 + -20 Combine like terms: 20 + -20 = 0 0 + 1x = -1 + -20 1x = -1 + -20 Combine like terms: -1 + -20 = -21 1x = -21 Divide each side by '1'. x = -21 Simplifying x = -21
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