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Simplifying 5 = 2(2d + 7) Reorder the terms: 5 = 2(7 + 2d) 5 = (7 * 2 + 2d * 2) 5 = (14 + 4d) Solving 5 = 14 + 4d Solving for variable 'd'. Move all terms containing d to the left, all other terms to the right. Add '-4d' to each side of the equation. 5 + -4d = 14 + 4d + -4d Combine like terms: 4d + -4d = 0 5 + -4d = 14 + 0 5 + -4d = 14 Add '-5' to each side of the equation. 5 + -5 + -4d = 14 + -5 Combine like terms: 5 + -5 = 0 0 + -4d = 14 + -5 -4d = 14 + -5 Combine like terms: 14 + -5 = 9 -4d = 9 Divide each side by '-4'. d = -2.25 Simplifying d = -2.25
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