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Simplifying x + 3x + 2x + -2 = 138 Reorder the terms: -2 + x + 3x + 2x = 138 Combine like terms: x + 3x = 4x -2 + 4x + 2x = 138 Combine like terms: 4x + 2x = 6x -2 + 6x = 138 Solving -2 + 6x = 138 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '2' to each side of the equation. -2 + 2 + 6x = 138 + 2 Combine like terms: -2 + 2 = 0 0 + 6x = 138 + 2 6x = 138 + 2 Combine like terms: 138 + 2 = 140 6x = 140 Divide each side by '6'. x = 23.33333333 Simplifying x = 23.33333333
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