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Simplifying (7x + 1) = 9 Reorder the terms: (1 + 7x) = 9 Remove parenthesis around (1 + 7x) 1 + 7x = 9 Solving 1 + 7x = 9 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 + 7x = 9 + -1 Combine like terms: 1 + -1 = 0 0 + 7x = 9 + -1 7x = 9 + -1 Combine like terms: 9 + -1 = 8 7x = 8 Divide each side by '7'. x = 1.142857143 Simplifying x = 1.142857143
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