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Simplifying 2x + (x + 2) = 12 Reorder the terms: 2x + (2 + x) = 12 Remove parenthesis around (2 + x) 2x + 2 + x = 12 Reorder the terms: 2 + 2x + x = 12 Combine like terms: 2x + x = 3x 2 + 3x = 12 Solving 2 + 3x = 12 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 + 3x = 12 + -2 Combine like terms: 2 + -2 = 0 0 + 3x = 12 + -2 3x = 12 + -2 Combine like terms: 12 + -2 = 10 3x = 10 Divide each side by '3'. x = 3.333333333 Simplifying x = 3.333333333
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