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Simplifying x + x + 102 = 180 Reorder the terms: 102 + x + x = 180 Combine like terms: x + x = 2x 102 + 2x = 180 Solving 102 + 2x = 180 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-102' to each side of the equation. 102 + -102 + 2x = 180 + -102 Combine like terms: 102 + -102 = 0 0 + 2x = 180 + -102 2x = 180 + -102 Combine like terms: 180 + -102 = 78 2x = 78 Divide each side by '2'. x = 39 Simplifying x = 39
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