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Simplifying 2(2x + 1) = x + 9 Reorder the terms: 2(1 + 2x) = x + 9 (1 * 2 + 2x * 2) = x + 9 (2 + 4x) = x + 9 Reorder the terms: 2 + 4x = 9 + x Solving 2 + 4x = 9 + x Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-1x' to each side of the equation. 2 + 4x + -1x = 9 + x + -1x Combine like terms: 4x + -1x = 3x 2 + 3x = 9 + x + -1x Combine like terms: x + -1x = 0 2 + 3x = 9 + 0 2 + 3x = 9 Add '-2' to each side of the equation. 2 + -2 + 3x = 9 + -2 Combine like terms: 2 + -2 = 0 0 + 3x = 9 + -2 3x = 9 + -2 Combine like terms: 9 + -2 = 7 3x = 7 Divide each side by '3'. x = 2.333333333 Simplifying x = 2.333333333
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