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Simplifying 0.9ln(10000 + -0.01D) + 0.1ln(10000 + -7000 + 0.99D) = 0 (10000 * 0.9ln + -0.01D * 0.9ln) + 0.1ln(10000 + -7000 + 0.99D) = 0 (9000ln + -0.009lnD) + 0.1ln(10000 + -7000 + 0.99D) = 0 Combine like terms: 10000 + -7000 = 3000 9000ln + -0.009lnD + 0.1ln(3000 + 0.99D) = 0 9000ln + -0.009lnD + (3000 * 0.1ln + 0.99D * 0.1ln) = 0 9000ln + -0.009lnD + (300ln + 0.099lnD) = 0 Reorder the terms: 9000ln + 300ln + -0.009lnD + 0.099lnD = 0 Combine like terms: 9000ln + 300ln = 9300ln 9300ln + -0.009lnD + 0.099lnD = 0 Combine like terms: -0.009lnD + 0.099lnD = 0.09lnD 9300ln + 0.09lnD = 0 Solving 9300ln + 0.09lnD = 0 Solving for variable 'l'. Move all terms containing l to the left, all other terms to the right. The solution to this equation could not be determined.
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