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Simplifying x + 42 + 2x = 132 Reorder the terms: 42 + x + 2x = 132 Combine like terms: x + 2x = 3x 42 + 3x = 132 Solving 42 + 3x = 132 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-42' to each side of the equation. 42 + -42 + 3x = 132 + -42 Combine like terms: 42 + -42 = 0 0 + 3x = 132 + -42 3x = 132 + -42 Combine like terms: 132 + -42 = 90 3x = 90 Divide each side by '3'. x = 30 Simplifying x = 30
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