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Simplifying 4(-2x + 7) = 81 Reorder the terms: 4(7 + -2x) = 81 (7 * 4 + -2x * 4) = 81 (28 + -8x) = 81 Solving 28 + -8x = 81 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 = 81 + -28 Combine like terms: 28 + -28 = 0 0 + -8x = 81 + -28 -8x = 81 + -28 Combine like terms: 81 + -28 = 53 -8x = 53 Divide each side by '-8'. x = -6.625 Simplifying x = -6.625
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