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Simplifying 2x + (x + 1) = 8 Reorder the terms: 2x + (1 + x) = 8 Remove parenthesis around (1 + x) 2x + 1 + x = 8 Reorder the terms: 1 + 2x + x = 8 Combine like terms: 2x + x = 3x 1 + 3x = 8 Solving 1 + 3x = 8 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-1' to each side of the equation. 1 + -1 + 3x = 8 + -1 Combine like terms: 1 + -1 = 0 0 + 3x = 8 + -1 3x = 8 + -1 Combine like terms: 8 + -1 = 7 3x = 7 Divide each side by '3'. x = 2.333333333 Simplifying x = 2.333333333
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