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Simplifying 7(x + 4) = 9 Reorder the terms: 7(4 + x) = 9 (4 * 7 + x * 7) = 9 (28 + 7x) = 9 Solving 28 + 7x = 9 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-28' to each side of the equation. 28 + -28 + 7x = 9 + -28 Combine like terms: 28 + -28 = 0 0 + 7x = 9 + -28 7x = 9 + -28 Combine like terms: 9 + -28 = -19 7x = -19 Divide each side by '7'. x = -2.714285714 Simplifying x = -2.714285714
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