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Simplifying x + 2x + 2(2x) = 64 Remove parenthesis around (2x) x + 2x + 2 * 2x = 64 Multiply 2 * 2 x + 2x + 4x = 64 Combine like terms: x + 2x = 3x 3x + 4x = 64 Combine like terms: 3x + 4x = 7x 7x = 64 Solving 7x = 64 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Divide each side by '7'. x = 9.142857143 Simplifying x = 9.142857143
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