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Simplifying f(d) = 0.75d + 20 Multiply f * d df = 0.75d + 20 Reorder the terms: df = 20 + 0.75d Solving df = 20 + 0.75d Solving for variable 'd'. Move all terms containing d to the left, all other terms to the right. Add '-0.75d' to each side of the equation. -0.75d + df = 20 + 0.75d + -0.75d Combine like terms: 0.75d + -0.75d = 0.00 -0.75d + df = 20 + 0.00 -0.75d + df = 20 Reorder the terms: -20 + -0.75d + df = 20 + -20 Combine like terms: 20 + -20 = 0 -20 + -0.75d + df = 0 The solution to this equation could not be determined.
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