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Simplifying ln(x + 9) + ln(x + -9) = 0 Reorder the terms: ln(9 + x) + ln(x + -9) = 0 (9 * ln + x * ln) + ln(x + -9) = 0 (9ln + lnx) + ln(x + -9) = 0 Reorder the terms: 9ln + lnx + ln(-9 + x) = 0 9ln + lnx + (-9 * ln + x * ln) = 0 9ln + lnx + (-9ln + lnx) = 0 Reorder the terms: 9ln + -9ln + lnx + lnx = 0 Combine like terms: 9ln + -9ln = 0 0 + lnx + lnx = 0 lnx + lnx = 0 Combine like terms: lnx + lnx = 2lnx 2lnx = 0 Solving 2lnx = 0 Solving for variable 'l'. Move all terms containing l to the left, all other terms to the right. Divide each side by '2'. lnx = 0 Simplifying lnx = 0 The solution to this equation could not be determined.
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