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Simplifying 2x + -81 = x Reorder the terms: -81 + 2x = x Solving -81 + 2x = 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. -81 + 2x + -1x = x + -1x Combine like terms: 2x + -1x = 1x -81 + 1x = x + -1x Combine like terms: x + -1x = 0 -81 + 1x = 0 Add '81' to each side of the equation. -81 + 81 + 1x = 0 + 81 Combine like terms: -81 + 81 = 0 0 + 1x = 0 + 81 1x = 0 + 81 Combine like terms: 0 + 81 = 81 1x = 81 Divide each side by '1'. x = 81 Simplifying x = 81
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