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Simplifying 4(2x + 7) = 84 Reorder the terms: 4(7 + 2x) = 84 (7 * 4 + 2x * 4) = 84 (28 + 8x) = 84 Solving 28 + 8x = 84 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 + 8x = 84 + -28 Combine like terms: 28 + -28 = 0 0 + 8x = 84 + -28 8x = 84 + -28 Combine like terms: 84 + -28 = 56 8x = 56 Divide each side by '8'. x = 7 Simplifying x = 7
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